20561523840

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 1024

約数和(自身を含む): 87722611200

約数和(自身を除く): 67161087360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 27, 30, 32, 33, 36, 39, 40, 44, 45, 48, 52, 53, 54, 55, 60, 64, 65, 66, 72, 78, 80, 88, 90, 96, 99, 104, 106, 108, 110, 117, 120, 128, 130, 132, 135, 143, 144, 156, 157, 159, 160, 165, 176, 180, 192, 195, 198, 208, 212, 216, 220, 234, 240, 260, 264, 265, 270, 286, 288, 297, 312, 314, 318, 320, 330, 351, 352, 360, 384, 390, 396, 416, 424, 429, 432, 440, 468, 471, 477, 480, 495, 520, 528, 530, 540, 572, 576, 583, 585, 594, 624, 628, 636, 640, 660, 689, 702, 704, 715, 720, 780, 785, 792, 795, 832, 848, 858, 864, 880, 936, 942, 954, 960, 990, 1040, 1056, 1060, 1080, 1144, 1152, 1166, 1170, 1188, 1248, 1256, 1272, 1287, 1320, 1378, 1404, 1408, 1413, 1430, 1431, 1440, 1485, 1560, 1570, 1584, 1590, 1664, 1696, 1716, 1727, 1728, 1749, 1755, 1760, 1872, 1884, 1908, 1920, 1980, 2041, 2067, 2080, 2112, 2120, 2145, 2160, 2288, 2332, 2340, 2355, 2376, 2385, 2496, 2512, 2544, 2574, 2640, 2756, 2808, 2826, 2860, 2862, 2880, 2915, 2970, 3120, 3140, 3168, 3180, 3392, 3432, 3445, 3454, 3456, 3498, 3510, 3520, 3744, 3768, 3816, 3861, 3960, 4082, 4134, 4160, 4224, 4239, 4240, 4290, 4320, 4576, 4664, 4680, 4710, 4752, 4770, 4992, 5024, 5088, 5148, 5181, 5247, 5280, 5512, 5616, 5652, 5720, 5724, 5760, 5830, 5940, 6123, 6201, 6240, 6280, 6336, 6360, 6435, 6784, 6864, 6890, 6908, 6996, 7020, 7040, 7065, 7155, 7488, 7536, 7579, 7632, 7722, 7920, 8164, 8268, 8320, 8321, 8478, 8480, 8580, 8635, 8640, 8745, 9152, 9328, 9360, 9420, 9504, 9540, 10048, 10176, 10205, 10296, 10335, 10362, 10494, 10560, 11024, 11232, 11304, 11440, 11448, 11660, 11880, 12246, 12402, 12480, 12560, 12672, 12720, 12870, 13728, 13780, 13816, 13992, 14040, 14130, 14310, 14976, 15072, 15158, 15264, 15444, 15543, 15741, 15840, 16328, 16536, 16642, 16956, 16960, 17160, 17270, 17280, 17490, 18304, 18369, 18603, 18656, 18720, 18840, 19008, 19080, 19305, 20096, 20352, 20410, 20592, 20670, 20724, 20988, 21120, 21195, 22048, 22451, 22464, 22608, 22737, 22880, 22896, 23320, 23760, 24492, 24804, 24960, 24963, 25120, 25440, 25740, 25905, 26235, 27456, 27560, 27632, 27984, 28080, 28260, 28620, 30144, 30316, 30528, 30615, 30888, 31005, 31086, 31482, 31680, 32656, 33072, 33284, 33912, 33920, 34320, 34540, 34980, 36738, 37206, 37312, 37440, 37680, 37895, 38016, 38160, 38610, 40820, 41184, 41340, 41448, 41605, 41976, 42390, 44096, 44902, 44928, 45216, 45474, 45760, 45792, 46629, 46640, 47520, 48984, 49608, 49926, 50240, 50880, 51480, 51810, 52470, 54912, 55107, 55120, 55264, 55968, 56160, 56520, 57240, 60288, 60632, 61056, 61230, 61776, 62010, 62172, 62964, 63360, 65312, 66144, 66568, 67353, 67824, 68211, 68640, 69080, 69960, 73476, 74412, 74624, 74880, 74889, 75360, 75790, 76320, 77220, 77715, 78705, 81640, 82368, 82680, 82896, 83210, 83952, 84780, 88192, 89804, 90432, 90948, 91520, 91531, 91584, 91845, 93015, 93258, 93280, 95040, 97968, 99216, 99852, 100480, 101760, 102960, 103620, 104940, 108173, 110214, 110240, 110528, 111936, 112255, 112320, 113040, 113685, 114480, 121264, 122460, 123552, 124020, 124344, 124815, 125928, 130624, 132288, 133136, 134706, 135648, 136422, 137280, 138160, 139920, 146952, 148824, 149778, 150720, 151580, 152640, 154440, 155430, 157410, 163280, 164736, 165360, 165792, 166420, 167904, 169560, 179608, 180864, 181896, 183062, 183168, 183690, 186030, 186516, 186560, 190080, 195936, 198432, 199704, 202059, 204633, 205920, 207240, 209880, 216346, 220428, 220480, 221056, 223872, 224510, 224640, 224667, 226080, 227370, 228960, 233145, 242528, 244920, 247104, 248040, 248688, 249630, 251856, 261248, 264576, 266272, 269412, 271296, 272844, 274560, 274593, 275535, 276320, 279840, 293904, 297648, 299556, 301440, 303160, 305280, 308880, 310860, 314820, 324519, 326560, 330720, 331584, 332840, 335808, 336765, 339120, 341055, 359216, 363792, 366124, 367380, 372060, 373032, 373120, 374445, 391872, 396864, 399408, 404118, 409266, 411840, 414480, 419760, 432692, 440856, 440960, 449020, 449334, 452160, 454740, 457655, 457920, 466290, 485056, 489840, 494208, 496080, 497376, 499260, 503712, 532544, 538824, 540865, 542592, 545688, 549186, 551070, 552640, 559680, 587808, 595296, 599112, 606177, 606320, 617760, 621720, 629640, 649038, 653120, 661440, 663168, 665680, 671616, 673530, 678240, 682110, 718432, 727584, 732248, 734760, 744120, 746064, 748890, 783744, 793728, 798816, 808236, 818532, 823680, 823779, 828960, 839520, 865384, 881712, 898040, 898668, 904320, 909480, 915310, 915840, 932580, 970112, 973557, 979680, 992160, 994752, 998520, 1007424, 1010295, 1023165, 1065088, 1077648, 1081730, 1091376, 1098372, 1102140, 1105280, 1119360, 1123335, 1175616, 1189903, 1190592, 1198224, 1212354, 1212640, 1235520, 1243440, 1259280, 1298076, 1306240, 1322880, 1331360, 1347060, 1356480, 1364220, 1372965, 1436864, 1455168, 1464496, 1469520, 1488240, 1492128, 1497780, 1597632, 1616472, 1622595, 1637064, 1647558, 1657920, 1679040, 1730768, 1763424, 1796080, 1797336, 1818960, 1830620, 1865160, 1947114, 1959360, 1984320, 1989504, 1997040, 2014848, 2020590, 2046330, 2155296, 2163460, 2182752, 2196744, 2204280, 2246670, 2351232, 2379806, 2381184, 2396448, 2424708, 2425280, 2471040, 2471337, 2486880, 2518560, 2596152, 2662720, 2694120, 2712960, 2728440, 2745930, 2873728, 2910336, 2920671, 2928992, 2939040, 2976480, 2984256, 2995560, 3030885, 3195264, 3232944, 3245190, 3274128, 3295116, 3315840, 3358080, 3461536, 3526848, 3569709, 3592160, 3594672, 3637920, 3661240, 3730320, 3894228, 3918720, 3968640, 3994080, 4041180, 4092660, 4118895, 4310592, 4326920, 4365504, 4393488, 4408560, 4493340, 4759612, 4792896, 4849416, 4850560, 4867785, 4942674, 4973760, 5037120, 5192304, 5325440, 5388240, 5456880, 5491860, 5841342, 5857984, 5878080, 5949515, 5952960, 5968512, 5991120, 6061770, 6465888, 6490380, 6548256, 6590232, 6923072, 7053696, 7139418, 7184320, 7189344, 7275840, 7322480, 7460640, 7788456, 7988160, 8082360, 8185320, 8237790, 8621184, 8653840, 8731008, 8786976, 8817120, 8986680, 9519224, 9585792, 9698832, 9735570, 9885348, 9947520, 10074240, 10384608, 10709127, 10776480, 10913760, 10983720, 11682684, 11715968, 11756160, 11899030, 11905920, 11982240, 12123540, 12356685, 12931776, 12980760, 13096512, 13180464, 13846144, 14278836, 14368640, 14378688, 14551680, 14603355, 14644960, 14921280, 15576912, 15976320, 16164720, 16370640, 16475580, 17307680, 17573952, 17634240, 17848545, 17973360, 19038448, 19397664, 19471140, 19770696, 20769216, 21418254, 21552960, 21827520, 21967440, 23365368, 23798060, 23964480, 24247080, 24713370, 25863552, 25961520, 26193024, 26360928, 28557672, 28757376, 29206710, 29289920, 29842560, 31153824, 32127381, 32329440, 32741280, 32951160, 34615360, 35147904, 35268480, 35697090, 35946720, 38076896, 38795328, 38942280, 39541392, 41538432, 42836508, 43105920, 43655040, 43934880, 46730736, 47596120, 47928960, 48494160, 49426740, 51923040, 52721856, 53545635, 57115344, 58413420, 58579840, 62307648, 64254762, 64658880, 65482560, 65902320, 69230720, 71394180, 71893440, 76153792, 77590656, 77884560, 79082784, 85673016, 87869760, 93461472, 95192240, 96988320, 98853480, 103846080, 105443712, 107091270, 114230688, 116826840, 124615296, 128509524, 129317760, 130965120, 131804640, 142788360, 143786880, 152307584, 155769120, 158165568, 160636905, 171346032, 175739520, 186922944, 190384480, 193976640, 197706960, 207692160, 214182540, 228461376, 233653680, 257019048, 263609280, 285576720, 311538240, 316331136, 321273810, 342692064, 373845888, 380768960, 387953280, 395413920, 428365080, 456922752, 467307360, 514038096, 527218560, 571153440, 623076480, 642547620, 685384128, 761537920, 790827840, 856730160, 934614720, 1028076192, 1142306880, 1285095240, 1370768256, 1581655680, 1713460320, 1869229440, 2056152384, 2284613760, 2570190480, 3426920640, 4112304768, 5140380960, 6853841280, 10280761920, 20561523840]

約数ペア:

[(1, 20561523840), (2, 10280761920), (3, 6853841280), (4, 5140380960), (5, 4112304768), (6, 3426920640), (8, 2570190480), (9, 2284613760), (10, 2056152384), (11, 1869229440), (12, 1713460320), (13, 1581655680), (15, 1370768256), (16, 1285095240), (18, 1142306880), (20, 1028076192), (22, 934614720), (24, 856730160), (26, 790827840), (27, 761537920), (30, 685384128), (32, 642547620), (33, 623076480), (36, 571153440), (39, 527218560), (40, 514038096), (44, 467307360), (45, 456922752), (48, 428365080), (52, 395413920), (53, 387953280), (54, 380768960), (55, 373845888), (60, 342692064), (64, 321273810), (65, 316331136), (66, 311538240), (72, 285576720), (78, 263609280), (80, 257019048), (88, 233653680), (90, 228461376), (96, 214182540), (99, 207692160), (104, 197706960), (106, 193976640), (108, 190384480), (110, 186922944), (117, 175739520), (120, 171346032), (128, 160636905), (130, 158165568), (132, 155769120), (135, 152307584), (143, 143786880), (144, 142788360), (156, 131804640), (157, 130965120), (159, 129317760), (160, 128509524), (165, 124615296), (176, 116826840), (180, 114230688), (192, 107091270), (195, 105443712), (198, 103846080), (208, 98853480), (212, 96988320), (216, 95192240), (220, 93461472), (234, 87869760), (240, 85673016), (260, 79082784), (264, 77884560), (265, 77590656), (270, 76153792), (286, 71893440), (288, 71394180), (297, 69230720), (312, 65902320), (314, 65482560), (318, 64658880), (320, 64254762), (330, 62307648), (351, 58579840), (352, 58413420), (360, 57115344), (384, 53545635), (390, 52721856), (396, 51923040), (416, 49426740), (424, 48494160), (429, 47928960), (432, 47596120), (440, 46730736), (468, 43934880), (471, 43655040), (477, 43105920), (480, 42836508), (495, 41538432), (520, 39541392), (528, 38942280), (530, 38795328), (540, 38076896), (572, 35946720), (576, 35697090), (583, 35268480), (585, 35147904), (594, 34615360), (624, 32951160), (628, 32741280), (636, 32329440), (640, 32127381), (660, 31153824), (689, 29842560), (702, 29289920), (704, 29206710), (715, 28757376), (720, 28557672), (780, 26360928), (785, 26193024), (792, 25961520), (795, 25863552), (832, 24713370), (848, 24247080), (858, 23964480), (864, 23798060), (880, 23365368), (936, 21967440), (942, 21827520), (954, 21552960), (960, 21418254), (990, 20769216), (1040, 19770696), (1056, 19471140), (1060, 19397664), (1080, 19038448), (1144, 17973360), (1152, 17848545), (1166, 17634240), (1170, 17573952), (1188, 17307680), (1248, 16475580), (1256, 16370640), (1272, 16164720), (1287, 15976320), (1320, 15576912), (1378, 14921280), (1404, 14644960), (1408, 14603355), (1413, 14551680), (1430, 14378688), (1431, 14368640), (1440, 14278836), (1485, 13846144), (1560, 13180464), (1570, 13096512), (1584, 12980760), (1590, 12931776), (1664, 12356685), (1696, 12123540), (1716, 11982240), (1727, 11905920), (1728, 11899030), (1749, 11756160), (1755, 11715968), (1760, 11682684), (1872, 10983720), (1884, 10913760), (1908, 10776480), (1920, 10709127), (1980, 10384608), (2041, 10074240), (2067, 9947520), (2080, 9885348), (2112, 9735570), (2120, 9698832), (2145, 9585792), (2160, 9519224), (2288, 8986680), (2332, 8817120), (2340, 8786976), (2355, 8731008), (2376, 8653840), (2385, 8621184), (2496, 8237790), (2512, 8185320), (2544, 8082360), (2574, 7988160), (2640, 7788456), (2756, 7460640), (2808, 7322480), (2826, 7275840), (2860, 7189344), (2862, 7184320), (2880, 7139418), (2915, 7053696), (2970, 6923072), (3120, 6590232), (3140, 6548256), (3168, 6490380), (3180, 6465888), (3392, 6061770), (3432, 5991120), (3445, 5968512), (3454, 5952960), (3456, 5949515), (3498, 5878080), (3510, 5857984), (3520, 5841342), (3744, 5491860), (3768, 5456880), (3816, 5388240), (3861, 5325440), (3960, 5192304), (4082, 5037120), (4134, 4973760), (4160, 4942674), (4224, 4867785), (4239, 4850560), (4240, 4849416), (4290, 4792896), (4320, 4759612), (4576, 4493340), (4664, 4408560), (4680, 4393488), (4710, 4365504), (4752, 4326920), (4770, 4310592), (4992, 4118895), (5024, 4092660), (5088, 4041180), (5148, 3994080), (5181, 3968640), (5247, 3918720), (5280, 3894228), (5512, 3730320), (5616, 3661240), (5652, 3637920), (5720, 3594672), (5724, 3592160), (5760, 3569709), (5830, 3526848), (5940, 3461536), (6123, 3358080), (6201, 3315840), (6240, 3295116), (6280, 3274128), (6336, 3245190), (6360, 3232944), (6435, 3195264), (6784, 3030885), (6864, 2995560), (6890, 2984256), (6908, 2976480), (6996, 2939040), (7020, 2928992), (7040, 2920671), (7065, 2910336), (7155, 2873728), (7488, 2745930), (7536, 2728440), (7579, 2712960), (7632, 2694120), (7722, 2662720), (7920, 2596152), (8164, 2518560), (8268, 2486880), (8320, 2471337), (8321, 2471040), (8478, 2425280), (8480, 2424708), (8580, 2396448), (8635, 2381184), (8640, 2379806), (8745, 2351232), (9152, 2246670), (9328, 2204280), (9360, 2196744), (9420, 2182752), (9504, 2163460), (9540, 2155296), (10048, 2046330), (10176, 2020590), (10205, 2014848), (10296, 1997040), (10335, 1989504), (10362, 1984320), (10494, 1959360), (10560, 1947114), (11024, 1865160), (11232, 1830620), (11304, 1818960), (11440, 1797336), (11448, 1796080), (11660, 1763424), (11880, 1730768), (12246, 1679040), (12402, 1657920), (12480, 1647558), (12560, 1637064), (12672, 1622595), (12720, 1616472), (12870, 1597632), (13728, 1497780), (13780, 1492128), (13816, 1488240), (13992, 1469520), (14040, 1464496), (14130, 1455168), (14310, 1436864), (14976, 1372965), (15072, 1364220), (15158, 1356480), (15264, 1347060), (15444, 1331360), (15543, 1322880), (15741, 1306240), (15840, 1298076), (16328, 1259280), (16536, 1243440), (16642, 1235520), (16956, 1212640), (16960, 1212354), (17160, 1198224), (17270, 1190592), (17280, 1189903), (17490, 1175616), (18304, 1123335), (18369, 1119360), (18603, 1105280), (18656, 1102140), (18720, 1098372), (18840, 1091376), (19008, 1081730), (19080, 1077648), (19305, 1065088), (20096, 1023165), (20352, 1010295), (20410, 1007424), (20592, 998520), (20670, 994752), (20724, 992160), (20988, 979680), (21120, 973557), (21195, 970112), (22048, 932580), (22451, 915840), (22464, 915310), (22608, 909480), (22737, 904320), (22880, 898668), (22896, 898040), (23320, 881712), (23760, 865384), (24492, 839520), (24804, 828960), (24960, 823779), (24963, 823680), (25120, 818532), (25440, 808236), (25740, 798816), (25905, 793728), (26235, 783744), (27456, 748890), (27560, 746064), (27632, 744120), (27984, 734760), (28080, 732248), (28260, 727584), (28620, 718432), (30144, 682110), (30316, 678240), (30528, 673530), (30615, 671616), (30888, 665680), (31005, 663168), (31086, 661440), (31482, 653120), (31680, 649038), (32656, 629640), (33072, 621720), (33284, 617760), (33912, 606320), (33920, 606177), (34320, 599112), (34540, 595296), (34980, 587808), (36738, 559680), (37206, 552640), (37312, 551070), (37440, 549186), (37680, 545688), (37895, 542592), (38016, 540865), (38160, 538824), (38610, 532544), (40820, 503712), (41184, 499260), (41340, 497376), (41448, 496080), (41605, 494208), (41976, 489840), (42390, 485056), (44096, 466290), (44902, 457920), (44928, 457655), (45216, 454740), (45474, 452160), (45760, 449334), (45792, 449020), (46629, 440960), (46640, 440856), (47520, 432692), (48984, 419760), (49608, 414480), (49926, 411840), (50240, 409266), (50880, 404118), (51480, 399408), (51810, 396864), (52470, 391872), (54912, 374445), (55107, 373120), (55120, 373032), (55264, 372060), (55968, 367380), (56160, 366124), (56520, 363792), (57240, 359216), (60288, 341055), (60632, 339120), (61056, 336765), (61230, 335808), (61776, 332840), (62010, 331584), (62172, 330720), (62964, 326560), (63360, 324519), (65312, 314820), (66144, 310860), (66568, 308880), (67353, 305280), (67824, 303160), (68211, 301440), (68640, 299556), (69080, 297648), (69960, 293904), (73476, 279840), (74412, 276320), (74624, 275535), (74880, 274593), (74889, 274560), (75360, 272844), (75790, 271296), (76320, 269412), (77220, 266272), (77715, 264576), (78705, 261248), (81640, 251856), (82368, 249630), (82680, 248688), (82896, 248040), (83210, 247104), (83952, 244920), (84780, 242528), (88192, 233145), (89804, 228960), (90432, 227370), (90948, 226080), (91520, 224667), (91531, 224640), (91584, 224510), (91845, 223872), (93015, 221056), (93258, 220480), (93280, 220428), (95040, 216346), (97968, 209880), (99216, 207240), (99852, 205920), (100480, 204633), (101760, 202059), (102960, 199704), (103620, 198432), (104940, 195936), (108173, 190080), (110214, 186560), (110240, 186516), (110528, 186030), (111936, 183690), (112255, 183168), (112320, 183062), (113040, 181896), (113685, 180864), (114480, 179608), (121264, 169560), (122460, 167904), (123552, 166420), (124020, 165792), (124344, 165360), (124815, 164736), (125928, 163280), (130624, 157410), (132288, 155430), (133136, 154440), (134706, 152640), (135648, 151580), (136422, 150720), (137280, 149778), (138160, 148824), (139920, 146952)]