20581286880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:172

約数の個数: 1152

約数和(自身を含む): 88958435328

約数和(自身を除く): 68377148448

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 23, 24, 28, 30, 31, 32, 33, 35, 40, 42, 44, 46, 48, 55, 56, 60, 62, 66, 69, 70, 71, 77, 80, 84, 88, 92, 93, 96, 105, 110, 112, 115, 120, 121, 124, 132, 138, 140, 142, 154, 155, 160, 161, 165, 168, 176, 184, 186, 210, 213, 217, 220, 224, 230, 231, 240, 242, 248, 253, 264, 276, 280, 284, 308, 310, 322, 330, 336, 341, 345, 352, 355, 363, 368, 372, 385, 420, 426, 434, 440, 460, 462, 465, 480, 483, 484, 496, 497, 506, 528, 552, 560, 568, 605, 616, 620, 644, 651, 660, 672, 682, 690, 710, 713, 726, 736, 744, 759, 770, 781, 805, 840, 847, 852, 868, 880, 920, 924, 930, 966, 968, 992, 994, 1012, 1023, 1056, 1065, 1085, 1104, 1120, 1136, 1155, 1210, 1232, 1240, 1265, 1288, 1302, 1320, 1364, 1380, 1420, 1426, 1452, 1488, 1491, 1518, 1540, 1562, 1610, 1633, 1680, 1694, 1704, 1705, 1736, 1760, 1771, 1815, 1840, 1848, 1860, 1932, 1936, 1988, 2024, 2046, 2130, 2139, 2170, 2201, 2208, 2272, 2310, 2343, 2387, 2415, 2420, 2464, 2480, 2485, 2530, 2541, 2576, 2604, 2640, 2728, 2760, 2783, 2840, 2852, 2904, 2976, 2982, 3036, 3080, 3124, 3220, 3255, 3266, 3360, 3388, 3408, 3410, 3472, 3542, 3565, 3630, 3680, 3696, 3720, 3751, 3795, 3864, 3872, 3905, 3976, 4048, 4092, 4235, 4260, 4278, 4340, 4402, 4620, 4686, 4774, 4830, 4840, 4899, 4960, 4970, 4991, 5060, 5082, 5115, 5152, 5208, 5280, 5313, 5456, 5467, 5520, 5566, 5680, 5704, 5808, 5964, 6072, 6160, 6248, 6440, 6510, 6532, 6603, 6776, 6816, 6820, 6944, 7084, 7130, 7161, 7260, 7392, 7440, 7455, 7502, 7590, 7728, 7810, 7843, 7952, 8096, 8165, 8184, 8349, 8470, 8520, 8556, 8591, 8680, 8804, 8855, 9240, 9372, 9548, 9660, 9680, 9798, 9940, 9982, 10120, 10164, 10230, 10416, 10626, 10695, 10912, 10934, 11005, 11040, 11132, 11253, 11360, 11408, 11431, 11616, 11715, 11928, 11935, 12144, 12320, 12496, 12705, 12880, 13020, 13064, 13206, 13552, 13640, 13915, 14168, 14260, 14322, 14520, 14880, 14910, 14973, 15004, 15180, 15407, 15456, 15620, 15686, 15904, 16330, 16368, 16401, 16698, 16940, 17040, 17112, 17182, 17360, 17608, 17710, 17963, 18480, 18744, 18755, 19096, 19320, 19360, 19481, 19596, 19880, 19964, 20240, 20328, 20460, 20832, 21252, 21390, 21868, 22010, 22264, 22506, 22816, 22862, 23430, 23529, 23856, 23870, 24211, 24288, 24495, 24955, 24992, 25410, 25760, 25773, 26040, 26128, 26257, 26412, 26565, 27104, 27280, 27335, 27830, 28336, 28520, 28644, 29040, 29820, 29946, 30008, 30360, 30814, 31240, 31372, 32660, 32736, 32802, 33015, 33396, 33880, 34080, 34224, 34293, 34364, 34720, 35216, 35420, 35805, 35926, 36960, 37488, 37510, 38192, 38640, 38962, 39192, 39215, 39760, 39928, 40480, 40656, 40920, 41745, 42504, 42780, 42955, 43736, 44020, 44528, 45012, 45724, 46221, 46860, 47058, 47712, 47740, 48422, 48990, 49910, 50623, 50820, 51546, 52080, 52256, 52514, 52824, 53130, 53889, 54560, 54670, 54901, 55660, 56265, 56672, 57040, 57155, 57288, 58080, 58443, 59640, 59892, 60016, 60137, 60720, 61628, 62480, 62744, 65320, 65604, 66030, 66792, 67760, 68448, 68586, 68728, 70432, 70840, 71610, 71852, 72633, 74865, 74976, 75020, 76384, 77035, 77280, 77924, 78384, 78430, 78771, 79520, 79856, 81312, 81840, 82005, 83490, 85008, 85560, 85910, 86273, 87472, 88040, 89056, 89815, 90024, 91448, 92442, 93720, 94116, 95480, 96844, 97405, 97980, 99820, 101246, 101640, 103092, 104160, 105028, 105648, 106260, 107778, 109340, 109802, 111320, 112530, 114080, 114310, 114576, 116886, 117645, 119280, 119784, 120032, 120274, 121055, 121440, 123256, 124960, 125488, 125741, 128865, 130640, 131208, 131285, 132060, 133584, 135520, 137172, 137456, 141680, 143220, 143704, 145266, 149730, 150040, 151869, 154070, 155848, 156768, 156860, 157542, 159712, 163680, 164010, 164703, 166980, 169477, 170016, 171120, 171465, 171820, 172546, 174944, 176080, 179630, 180048, 180411, 182896, 184884, 187440, 188232, 190960, 193688, 194810, 195960, 197593, 199640, 202492, 203280, 206184, 210056, 211296, 212520, 215556, 218680, 219604, 222640, 225060, 228620, 229152, 231105, 233772, 235290, 238560, 239568, 240548, 242110, 246512, 250976, 251482, 253115, 257730, 258819, 261280, 262416, 262570, 264120, 266321, 267168, 269445, 274344, 274505, 274912, 283360, 286440, 287408, 290532, 292215, 299460, 300080, 300685, 303738, 308140, 311696, 313720, 315084, 328020, 329406, 333960, 338954, 342240, 342930, 343640, 345092, 352160, 354361, 359260, 360096, 360822, 363165, 365792, 369768, 374880, 376464, 377223, 381920, 387376, 389620, 391920, 393855, 395186, 399280, 404984, 406560, 412368, 420112, 425040, 431112, 431365, 437360, 439208, 445280, 450120, 457240, 462210, 467544, 470580, 479136, 481096, 484220, 493024, 502964, 506230, 508431, 515460, 517638, 524832, 525140, 528240, 532642, 538890, 548688, 549010, 556853, 572880, 574816, 581064, 584430, 592779, 598920, 600160, 601370, 603911, 607476, 616280, 623392, 627440, 628705, 630168, 656040, 658812, 667920, 677908, 685860, 687280, 690184, 708722, 718520, 721644, 726330, 739536, 752928, 754446, 759345, 774752, 779240, 783840, 787710, 790372, 798560, 798963, 809968, 823515, 824736, 840224, 847385, 850080, 862224, 862730, 874720, 878416, 900240, 902055, 914480, 924420, 935088, 941160, 962192, 968440, 987965, 1005928, 1012460, 1016862, 1030920, 1035276, 1050280, 1056480, 1063083, 1065284, 1077780, 1097376, 1098020, 1113706, 1145760, 1162128, 1168860, 1185558, 1197840, 1202740, 1207822, 1214952, 1232560, 1254880, 1257410, 1260336, 1294095, 1312080, 1317624, 1331605, 1335840, 1355816, 1371720, 1374560, 1380368, 1383151, 1417444, 1437040, 1443288, 1452660, 1479072, 1508892, 1518690, 1558480, 1575420, 1580744, 1597926, 1619936, 1647030, 1670559, 1694770, 1724448, 1725460, 1756832, 1771805, 1800480, 1804110, 1811733, 1828960, 1848840, 1864247, 1870176, 1882320, 1886115, 1924384, 1936880, 1975930, 2011856, 2024920, 2033724, 2061840, 2070552, 2100560, 2126166, 2130568, 2155560, 2196040, 2227412, 2324256, 2337720, 2371116, 2395680, 2405480, 2415644, 2429904, 2465120, 2514820, 2520672, 2542155, 2588190, 2624160, 2635248, 2663210, 2711632, 2743440, 2760736, 2766302, 2784265, 2834888, 2874080, 2886576, 2905320, 2963895, 3017784, 3019555, 3037380, 3116960, 3150840, 3161488, 3195852, 3294060, 3341118, 3389540, 3450920, 3543610, 3608220, 3623466, 3697680, 3728494, 3764640, 3772230, 3873760, 3897971, 3951860, 3994815, 4023712, 4049840, 4067448, 4123680, 4141104, 4149453, 4201120, 4252332, 4261136, 4311120, 4392080, 4454824, 4675440, 4742232, 4810960, 4831288, 4859808, 5029640, 5084310, 5176380, 5270496, 5315415, 5326420, 5423264, 5486880, 5532604, 5568530, 5592741, 5669776, 5773152, 5810640, 5927790, 6035568, 6039110, 6074760, 6125383, 6301680, 6322976, 6391704, 6588120, 6682236, 6779080, 6901840, 6915755, 7087220, 7216440, 7246932, 7395360, 7456988, 7544460, 7795942, 7903720, 7989630, 8099680, 8134896, 8282208, 8298906, 8352795, 8504664, 8522272, 8622240, 8784160, 8909648, 9058665, 9321235, 9350880, 9484464, 9621920, 9662576, 10059280, 10168620, 10352760, 10630830, 10652840, 11065208, 11137060, 11185482, 11339552, 11621280, 11693913, 11855580, 12071136, 12078220, 12149520, 12250766, 12603360, 12783408, 13176240, 13364472, 13558160, 13803680, 13831510, 14174440, 14432880, 14493864, 14913976, 15088920, 15591884, 15807440, 15979260, 16269792, 16597812, 16705590, 17009328, 17819296, 18117330, 18376149, 18642470, 18968928, 19325152, 19489855, 20118560, 20337240, 20705520, 20747265, 21261660, 21305680, 22130416, 22274120, 22370964, 23387826, 23711160, 24156440, 24299040, 24501532, 25566816, 26352480, 26728944, 27116320, 27663020, 27963705, 28348880, 28865760, 28987728, 29827952, 30177840, 30626915, 31183768, 31614880, 31958520, 33195624, 33411180, 34018656, 36234660, 36752298, 37284940, 38979710, 40674480, 41411040, 41494530, 42523320, 42611360, 42877681, 44260832, 44548240, 44741928, 46775652, 47422320, 48312880, 49003064, 53457888, 55326040, 55927410, 56697760, 57975456, 58469565, 59655904, 60355680, 61253830, 62367536, 63917040, 66391248, 66822360, 72469320, 73504596, 74569880, 77959420, 81348960, 82989060, 85046640, 85755362, 89096480, 89483856, 91880745, 93551304, 94844640, 96625760, 98006128, 110652080, 111854820, 116939130, 122507660, 124735072, 127834080, 128633043, 132782496, 133644720, 144938640, 147009192, 149139760, 155918840, 165978120, 170093280, 171510724, 178967712, 183761490, 187102608, 196012256, 214388405, 221304160, 223709640, 233878260, 245015320, 257266086, 267289440, 289877280, 294018384, 298279520, 311837680, 331956240, 343021448, 367522980, 374205216, 428776810, 447419280, 467756520, 490030640, 514532172, 588036768, 623675360, 643165215, 663912480, 686042896, 735045960, 857553620, 894838560, 935513040, 980061280, 1029064344, 1286330430, 1372085792, 1470091920, 1715107240, 1871026080, 2058128688, 2572660860, 2940183840, 3430214480, 4116257376, 5145321720, 6860428960, 10290643440, 20581286880]

約数ペア:

[(1, 20581286880), (2, 10290643440), (3, 6860428960), (4, 5145321720), (5, 4116257376), (6, 3430214480), (7, 2940183840), (8, 2572660860), (10, 2058128688), (11, 1871026080), (12, 1715107240), (14, 1470091920), (15, 1372085792), (16, 1286330430), (20, 1029064344), (21, 980061280), (22, 935513040), (23, 894838560), (24, 857553620), (28, 735045960), (30, 686042896), (31, 663912480), (32, 643165215), (33, 623675360), (35, 588036768), (40, 514532172), (42, 490030640), (44, 467756520), (46, 447419280), (48, 428776810), (55, 374205216), (56, 367522980), (60, 343021448), (62, 331956240), (66, 311837680), (69, 298279520), (70, 294018384), (71, 289877280), (77, 267289440), (80, 257266086), (84, 245015320), (88, 233878260), (92, 223709640), (93, 221304160), (96, 214388405), (105, 196012256), (110, 187102608), (112, 183761490), (115, 178967712), (120, 171510724), (121, 170093280), (124, 165978120), (132, 155918840), (138, 149139760), (140, 147009192), (142, 144938640), (154, 133644720), (155, 132782496), (160, 128633043), (161, 127834080), (165, 124735072), (168, 122507660), (176, 116939130), (184, 111854820), (186, 110652080), (210, 98006128), (213, 96625760), (217, 94844640), (220, 93551304), (224, 91880745), (230, 89483856), (231, 89096480), (240, 85755362), (242, 85046640), (248, 82989060), (253, 81348960), (264, 77959420), (276, 74569880), (280, 73504596), (284, 72469320), (308, 66822360), (310, 66391248), (322, 63917040), (330, 62367536), (336, 61253830), (341, 60355680), (345, 59655904), (352, 58469565), (355, 57975456), (363, 56697760), (368, 55927410), (372, 55326040), (385, 53457888), (420, 49003064), (426, 48312880), (434, 47422320), (440, 46775652), (460, 44741928), (462, 44548240), (465, 44260832), (480, 42877681), (483, 42611360), (484, 42523320), (496, 41494530), (497, 41411040), (506, 40674480), (528, 38979710), (552, 37284940), (560, 36752298), (568, 36234660), (605, 34018656), (616, 33411180), (620, 33195624), (644, 31958520), (651, 31614880), (660, 31183768), (672, 30626915), (682, 30177840), (690, 29827952), (710, 28987728), (713, 28865760), (726, 28348880), (736, 27963705), (744, 27663020), (759, 27116320), (770, 26728944), (781, 26352480), (805, 25566816), (840, 24501532), (847, 24299040), (852, 24156440), (868, 23711160), (880, 23387826), (920, 22370964), (924, 22274120), (930, 22130416), (966, 21305680), (968, 21261660), (992, 20747265), (994, 20705520), (1012, 20337240), (1023, 20118560), (1056, 19489855), (1065, 19325152), (1085, 18968928), (1104, 18642470), (1120, 18376149), (1136, 18117330), (1155, 17819296), (1210, 17009328), (1232, 16705590), (1240, 16597812), (1265, 16269792), (1288, 15979260), (1302, 15807440), (1320, 15591884), (1364, 15088920), (1380, 14913976), (1420, 14493864), (1426, 14432880), (1452, 14174440), (1488, 13831510), (1491, 13803680), (1518, 13558160), (1540, 13364472), (1562, 13176240), (1610, 12783408), (1633, 12603360), (1680, 12250766), (1694, 12149520), (1704, 12078220), (1705, 12071136), (1736, 11855580), (1760, 11693913), (1771, 11621280), (1815, 11339552), (1840, 11185482), (1848, 11137060), (1860, 11065208), (1932, 10652840), (1936, 10630830), (1988, 10352760), (2024, 10168620), (2046, 10059280), (2130, 9662576), (2139, 9621920), (2170, 9484464), (2201, 9350880), (2208, 9321235), (2272, 9058665), (2310, 8909648), (2343, 8784160), (2387, 8622240), (2415, 8522272), (2420, 8504664), (2464, 8352795), (2480, 8298906), (2485, 8282208), (2530, 8134896), (2541, 8099680), (2576, 7989630), (2604, 7903720), (2640, 7795942), (2728, 7544460), (2760, 7456988), (2783, 7395360), (2840, 7246932), (2852, 7216440), (2904, 7087220), (2976, 6915755), (2982, 6901840), (3036, 6779080), (3080, 6682236), (3124, 6588120), (3220, 6391704), (3255, 6322976), (3266, 6301680), (3360, 6125383), (3388, 6074760), (3408, 6039110), (3410, 6035568), (3472, 5927790), (3542, 5810640), (3565, 5773152), (3630, 5669776), (3680, 5592741), (3696, 5568530), (3720, 5532604), (3751, 5486880), (3795, 5423264), (3864, 5326420), (3872, 5315415), (3905, 5270496), (3976, 5176380), (4048, 5084310), (4092, 5029640), (4235, 4859808), (4260, 4831288), (4278, 4810960), (4340, 4742232), (4402, 4675440), (4620, 4454824), (4686, 4392080), (4774, 4311120), (4830, 4261136), (4840, 4252332), (4899, 4201120), (4960, 4149453), (4970, 4141104), (4991, 4123680), (5060, 4067448), (5082, 4049840), (5115, 4023712), (5152, 3994815), (5208, 3951860), (5280, 3897971), (5313, 3873760), (5456, 3772230), (5467, 3764640), (5520, 3728494), (5566, 3697680), (5680, 3623466), (5704, 3608220), (5808, 3543610), (5964, 3450920), (6072, 3389540), (6160, 3341118), (6248, 3294060), (6440, 3195852), (6510, 3161488), (6532, 3150840), (6603, 3116960), (6776, 3037380), (6816, 3019555), (6820, 3017784), (6944, 2963895), (7084, 2905320), (7130, 2886576), (7161, 2874080), (7260, 2834888), (7392, 2784265), (7440, 2766302), (7455, 2760736), (7502, 2743440), (7590, 2711632), (7728, 2663210), (7810, 2635248), (7843, 2624160), (7952, 2588190), (8096, 2542155), (8165, 2520672), (8184, 2514820), (8349, 2465120), (8470, 2429904), (8520, 2415644), (8556, 2405480), (8591, 2395680), (8680, 2371116), (8804, 2337720), (8855, 2324256), (9240, 2227412), (9372, 2196040), (9548, 2155560), (9660, 2130568), (9680, 2126166), (9798, 2100560), (9940, 2070552), (9982, 2061840), (10120, 2033724), (10164, 2024920), (10230, 2011856), (10416, 1975930), (10626, 1936880), (10695, 1924384), (10912, 1886115), (10934, 1882320), (11005, 1870176), (11040, 1864247), (11132, 1848840), (11253, 1828960), (11360, 1811733), (11408, 1804110), (11431, 1800480), (11616, 1771805), (11715, 1756832), (11928, 1725460), (11935, 1724448), (12144, 1694770), (12320, 1670559), (12496, 1647030), (12705, 1619936), (12880, 1597926), (13020, 1580744), (13064, 1575420), (13206, 1558480), (13552, 1518690), (13640, 1508892), (13915, 1479072), (14168, 1452660), (14260, 1443288), (14322, 1437040), (14520, 1417444), (14880, 1383151), (14910, 1380368), (14973, 1374560), (15004, 1371720), (15180, 1355816), (15407, 1335840), (15456, 1331605), (15620, 1317624), (15686, 1312080), (15904, 1294095), (16330, 1260336), (16368, 1257410), (16401, 1254880), (16698, 1232560), (16940, 1214952), (17040, 1207822), (17112, 1202740), (17182, 1197840), (17360, 1185558), (17608, 1168860), (17710, 1162128), (17963, 1145760), (18480, 1113706), (18744, 1098020), (18755, 1097376), (19096, 1077780), (19320, 1065284), (19360, 1063083), (19481, 1056480), (19596, 1050280), (19880, 1035276), (19964, 1030920), (20240, 1016862), (20328, 1012460), (20460, 1005928), (20832, 987965), (21252, 968440), (21390, 962192), (21868, 941160), (22010, 935088), (22264, 924420), (22506, 914480), (22816, 902055), (22862, 900240), (23430, 878416), (23529, 874720), (23856, 862730), (23870, 862224), (24211, 850080), (24288, 847385), (24495, 840224), (24955, 824736), (24992, 823515), (25410, 809968), (25760, 798963), (25773, 798560), (26040, 790372), (26128, 787710), (26257, 783840), (26412, 779240), (26565, 774752), (27104, 759345), (27280, 754446), (27335, 752928), (27830, 739536), (28336, 726330), (28520, 721644), (28644, 718520), (29040, 708722), (29820, 690184), (29946, 687280), (30008, 685860), (30360, 677908), (30814, 667920), (31240, 658812), (31372, 656040), (32660, 630168), (32736, 628705), (32802, 627440), (33015, 623392), (33396, 616280), (33880, 607476), (34080, 603911), (34224, 601370), (34293, 600160), (34364, 598920), (34720, 592779), (35216, 584430), (35420, 581064), (35805, 574816), (35926, 572880), (36960, 556853), (37488, 549010), (37510, 548688), (38192, 538890), (38640, 532642), (38962, 528240), (39192, 525140), (39215, 524832), (39760, 517638), (39928, 515460), (40480, 508431), (40656, 506230), (40920, 502964), (41745, 493024), (42504, 484220), (42780, 481096), (42955, 479136), (43736, 470580), (44020, 467544), (44528, 462210), (45012, 457240), (45724, 450120), (46221, 445280), (46860, 439208), (47058, 437360), (47712, 431365), (47740, 431112), (48422, 425040), (48990, 420112), (49910, 412368), (50623, 406560), (50820, 404984), (51546, 399280), (52080, 395186), (52256, 393855), (52514, 391920), (52824, 389620), (53130, 387376), (53889, 381920), (54560, 377223), (54670, 376464), (54901, 374880), (55660, 369768), (56265, 365792), (56672, 363165), (57040, 360822), (57155, 360096), (57288, 359260), (58080, 354361), (58443, 352160), (59640, 345092), (59892, 343640), (60016, 342930), (60137, 342240), (60720, 338954), (61628, 333960), (62480, 329406), (62744, 328020), (65320, 315084), (65604, 313720), (66030, 311696), (66792, 308140), (67760, 303738), (68448, 300685), (68586, 300080), (68728, 299460), (70432, 292215), (70840, 290532), (71610, 287408), (71852, 286440), (72633, 283360), (74865, 274912), (74976, 274505), (75020, 274344), (76384, 269445), (77035, 267168), (77280, 266321), (77924, 264120), (78384, 262570), (78430, 262416), (78771, 261280), (79520, 258819), (79856, 257730), (81312, 253115), (81840, 251482), (82005, 250976), (83490, 246512), (85008, 242110), (85560, 240548), (85910, 239568), (86273, 238560), (87472, 235290), (88040, 233772), (89056, 231105), (89815, 229152), (90024, 228620), (91448, 225060), (92442, 222640), (93720, 219604), (94116, 218680), (95480, 215556), (96844, 212520), (97405, 211296), (97980, 210056), (99820, 206184), (101246, 203280), (101640, 202492), (103092, 199640), (104160, 197593), (105028, 195960), (105648, 194810), (106260, 193688), (107778, 190960), (109340, 188232), (109802, 187440), (111320, 184884), (112530, 182896), (114080, 180411), (114310, 180048), (114576, 179630), (116886, 176080), (117645, 174944), (119280, 172546), (119784, 171820), (120032, 171465), (120274, 171120), (121055, 170016), (121440, 169477), (123256, 166980), (124960, 164703), (125488, 164010), (125741, 163680), (128865, 159712), (130640, 157542), (131208, 156860), (131285, 156768), (132060, 155848), (133584, 154070), (135520, 151869), (137172, 150040), (137456, 149730), (141680, 145266), (143220, 143704)]