20981782080

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^2$

素因数の和:133

約数の個数: 1008

約数和(自身を含む): 92252718720

約数和(自身を除く): 71270936640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 27, 28, 30, 31, 32, 35, 36, 38, 40, 42, 45, 48, 54, 56, 57, 60, 62, 63, 64, 70, 72, 76, 80, 84, 90, 93, 95, 96, 105, 108, 112, 114, 120, 124, 126, 133, 135, 140, 144, 152, 155, 160, 168, 171, 180, 186, 189, 190, 192, 210, 216, 217, 224, 228, 240, 248, 252, 266, 270, 279, 280, 285, 288, 304, 310, 315, 320, 336, 342, 360, 361, 372, 378, 380, 399, 420, 432, 434, 448, 456, 465, 480, 496, 504, 513, 532, 540, 558, 560, 570, 576, 589, 608, 620, 630, 651, 665, 672, 684, 720, 722, 744, 756, 760, 798, 837, 840, 855, 864, 868, 912, 930, 945, 960, 961, 992, 1008, 1026, 1064, 1080, 1083, 1085, 1116, 1120, 1140, 1178, 1197, 1216, 1240, 1260, 1302, 1330, 1344, 1368, 1395, 1440, 1444, 1488, 1512, 1520, 1596, 1674, 1680, 1710, 1728, 1736, 1767, 1805, 1824, 1860, 1890, 1922, 1953, 1984, 1995, 2016, 2052, 2128, 2160, 2166, 2170, 2232, 2240, 2280, 2356, 2394, 2480, 2520, 2527, 2565, 2604, 2660, 2736, 2790, 2880, 2883, 2888, 2945, 2976, 3024, 3040, 3192, 3249, 3255, 3348, 3360, 3420, 3472, 3534, 3591, 3610, 3648, 3720, 3780, 3844, 3906, 3990, 4032, 4104, 4123, 4185, 4256, 4320, 4332, 4340, 4464, 4560, 4712, 4788, 4805, 4960, 5040, 5054, 5130, 5208, 5301, 5320, 5415, 5472, 5580, 5766, 5776, 5859, 5890, 5952, 5985, 6048, 6080, 6384, 6498, 6510, 6696, 6720, 6727, 6840, 6944, 7068, 7182, 7220, 7440, 7560, 7581, 7688, 7812, 7980, 8208, 8246, 8370, 8512, 8640, 8649, 8664, 8680, 8835, 8928, 9120, 9424, 9576, 9610, 9747, 9765, 9920, 10080, 10108, 10260, 10416, 10602, 10640, 10830, 10944, 11160, 11191, 11532, 11552, 11718, 11780, 11970, 12096, 12369, 12635, 12768, 12996, 13020, 13392, 13454, 13680, 13888, 14136, 14364, 14415, 14440, 14880, 15120, 15162, 15376, 15624, 15903, 15960, 16245, 16416, 16492, 16740, 17298, 17328, 17360, 17670, 17856, 17955, 18240, 18259, 18848, 19152, 19220, 19494, 19530, 20160, 20181, 20216, 20520, 20615, 20832, 21204, 21280, 21660, 22320, 22382, 22743, 23064, 23104, 23436, 23560, 23940, 24738, 25270, 25536, 25947, 25992, 26040, 26505, 26784, 26908, 27360, 28272, 28728, 28830, 28880, 29295, 29760, 30240, 30324, 30752, 31248, 31806, 31920, 32490, 32832, 32984, 33480, 33573, 33635, 34596, 34656, 34720, 35340, 35910, 36518, 37107, 37696, 37905, 38304, 38440, 38988, 39060, 40362, 40432, 41040, 41230, 41664, 42408, 42560, 43245, 43320, 44640, 44764, 45486, 46128, 46872, 47120, 47880, 48735, 49476, 50540, 51894, 51984, 52080, 53010, 53568, 53816, 54720, 54777, 55955, 56544, 57456, 57660, 57760, 58590, 60480, 60543, 60648, 61504, 61845, 62496, 63612, 63840, 64980, 65968, 66960, 67146, 67270, 68229, 69192, 69312, 69440, 70680, 71820, 73036, 74214, 75810, 76608, 76880, 77976, 78120, 78337, 79515, 80724, 80864, 82080, 82460, 84816, 86490, 86640, 89280, 89528, 90972, 91295, 92256, 93744, 94240, 95760, 97470, 98952, 100719, 100905, 101080, 103788, 103968, 104160, 106020, 107632, 109554, 111321, 111910, 113088, 113715, 114912, 115320, 115520, 117180, 121086, 121296, 123690, 124992, 127224, 127680, 127813, 129735, 129960, 131936, 133920, 134292, 134540, 136458, 138384, 141360, 143640, 146072, 148428, 151620, 153760, 155952, 156240, 156674, 159030, 161448, 161728, 164160, 164331, 164920, 167865, 169632, 172980, 173280, 179056, 181629, 181944, 182590, 184512, 185535, 187488, 188480, 191520, 194940, 197904, 201438, 201810, 202160, 207576, 207936, 208320, 212040, 215264, 219108, 222642, 223820, 227430, 229824, 230640, 234360, 235011, 242172, 242592, 247380, 254448, 255626, 259470, 259920, 263872, 267840, 268584, 269080, 272916, 273885, 276768, 282720, 287280, 292144, 296856, 302157, 302715, 303240, 307520, 311904, 312480, 313348, 318060, 322896, 328662, 329840, 335730, 339264, 341145, 345960, 346560, 346921, 358112, 363258, 363888, 365180, 371070, 374976, 383040, 383439, 389880, 391685, 395808, 402876, 403620, 404320, 415152, 424080, 430528, 438216, 445284, 447640, 454860, 461280, 468720, 470022, 484344, 485184, 492993, 494760, 503595, 508896, 511252, 518940, 519840, 537168, 538160, 545832, 547770, 553536, 556605, 565440, 574560, 584288, 593712, 604314, 605430, 606480, 623808, 624960, 626696, 636120, 639065, 645792, 657324, 659680, 671460, 682290, 691920, 693842, 705033, 716224, 726516, 727776, 730360, 742140, 766878, 779760, 783370, 791616, 805752, 807240, 808640, 821655, 830304, 848160, 876432, 890568, 895280, 908145, 909720, 922560, 937440, 940044, 968688, 985986, 989520, 1007190, 1017792, 1022504, 1037880, 1039680, 1040763, 1074336, 1076320, 1091664, 1095540, 1113210, 1149120, 1150317, 1168576, 1175055, 1187424, 1208628, 1210860, 1212960, 1253392, 1272240, 1278130, 1291584, 1314648, 1319360, 1342920, 1364580, 1383840, 1387684, 1410066, 1453032, 1455552, 1460720, 1484280, 1510785, 1533756, 1559520, 1566740, 1611504, 1614480, 1643310, 1660608, 1696320, 1734605, 1752864, 1781136, 1790560, 1816290, 1819440, 1874880, 1880088, 1917195, 1937376, 1971972, 1979040, 2014380, 2045008, 2075760, 2081526, 2115099, 2148672, 2152640, 2183328, 2191080, 2226420, 2300634, 2350110, 2374848, 2417256, 2421720, 2425920, 2428447, 2464965, 2506784, 2544480, 2556260, 2629296, 2685840, 2729160, 2767680, 2775368, 2820132, 2906064, 2921440, 2968560, 3021570, 3067512, 3119040, 3122289, 3133480, 3223008, 3228960, 3286620, 3450951, 3469210, 3505728, 3525165, 3562272, 3581120, 3632580, 3638880, 3760176, 3834390, 3874752, 3943944, 3958080, 4028760, 4090016, 4151520, 4163052, 4230198, 4366656, 4382160, 4452840, 4601268, 4700220, 4834512, 4843440, 4856894, 4929930, 5013568, 5088960, 5112520, 5203815, 5258592, 5371680, 5458320, 5550736, 5640264, 5751585, 5812128, 5842880, 5937120, 6043140, 6135024, 6244578, 6266960, 6446016, 6457920, 6573240, 6901902, 6938420, 7050330, 7124544, 7265160, 7277760, 7285341, 7520352, 7668780, 7887888, 8057520, 8180032, 8303040, 8326104, 8460396, 8764320, 8905680, 9202536, 9366867, 9400440, 9669024, 9686880, 9713788, 9859860, 10225040, 10407630, 10517184, 10575495, 10743360, 10916640, 11101472, 11280528, 11503170, 11624256, 11874240, 12086280, 12142235, 12270048, 12489156, 12533920, 13146480, 13803804, 13876840, 14100660, 14530320, 14570682, 15040704, 15337560, 15611445, 15775776, 16115040, 16652208, 16920792, 17254755, 17528640, 17811360, 18405072, 18733734, 18800880, 19338048, 19373760, 19427576, 19719720, 20450080, 20815260, 21150990, 21833280, 21856023, 22202944, 22561056, 23006340, 24172560, 24284470, 24540096, 24978312, 25067840, 26292960, 27607608, 27753680, 28201320, 29060640, 29141364, 30675120, 31222890, 31551552, 32230080, 33304416, 33841584, 34509510, 35622720, 36426705, 36810144, 37467468, 37601760, 38855152, 39439440, 40900160, 41630520, 42301980, 43712046, 45122112, 46012680, 46834335, 48345120, 48568940, 49956624, 52585920, 55215216, 55507360, 56402640, 58121280, 58282728, 61350240, 62445780, 65568069, 66608832, 67683168, 69019020, 72853410, 73620288, 74934936, 75203520, 77710304, 78878880, 83261040, 84603960, 87424092, 92025360, 93668670, 96690240, 97137880, 99913248, 109280115, 110430432, 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約数ペア:

[(1, 20981782080), (2, 10490891040), (3, 6993927360), (4, 5245445520), (5, 4196356416), (6, 3496963680), (7, 2997397440), (8, 2622722760), (9, 2331309120), (10, 2098178208), (12, 1748481840), (14, 1498698720), (15, 1398785472), (16, 1311361380), (18, 1165654560), (19, 1104304320), (20, 1049089104), (21, 999132480), (24, 874240920), (27, 777103040), (28, 749349360), (30, 699392736), (31, 676831680), (32, 655680690), (35, 599479488), (36, 582827280), (38, 552152160), (40, 524544552), (42, 499566240), (45, 466261824), (48, 437120460), (54, 388551520), (56, 374674680), (57, 368101440), (60, 349696368), (62, 338415840), (63, 333044160), (64, 327840345), (70, 299739744), (72, 291413640), (76, 276076080), (80, 262272276), (84, 249783120), (90, 233130912), (93, 225610560), (95, 220860864), (96, 218560230), (105, 199826496), (108, 194275760), (112, 187337340), (114, 184050720), (120, 174848184), (124, 169207920), (126, 166522080), (133, 157757760), (135, 155420608), (140, 149869872), (144, 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31551552), (672, 31222890), (684, 30675120), (720, 29141364), (722, 29060640), (744, 28201320), (756, 27753680), (760, 27607608), (798, 26292960), (837, 25067840), (840, 24978312), (855, 24540096), (864, 24284470), (868, 24172560), (912, 23006340), (930, 22561056), (945, 22202944), (960, 21856023), (961, 21833280), (992, 21150990), (1008, 20815260), (1026, 20450080), (1064, 19719720), (1080, 19427576), (1083, 19373760), (1085, 19338048), (1116, 18800880), (1120, 18733734), (1140, 18405072), (1178, 17811360), (1197, 17528640), (1216, 17254755), (1240, 16920792), (1260, 16652208), (1302, 16115040), (1330, 15775776), (1344, 15611445), (1368, 15337560), (1395, 15040704), (1440, 14570682), (1444, 14530320), (1488, 14100660), (1512, 13876840), (1520, 13803804), (1596, 13146480), (1674, 12533920), (1680, 12489156), (1710, 12270048), (1728, 12142235), (1736, 12086280), (1767, 11874240), (1805, 11624256), (1824, 11503170), (1860, 11280528), (1890, 11101472), (1922, 10916640), (1953, 10743360), (1984, 10575495), (1995, 10517184), (2016, 10407630), (2052, 10225040), (2128, 9859860), (2160, 9713788), (2166, 9686880), (2170, 9669024), (2232, 9400440), (2240, 9366867), (2280, 9202536), (2356, 8905680), (2394, 8764320), (2480, 8460396), (2520, 8326104), (2527, 8303040), (2565, 8180032), (2604, 8057520), (2660, 7887888), (2736, 7668780), (2790, 7520352), (2880, 7285341), (2883, 7277760), (2888, 7265160), (2945, 7124544), (2976, 7050330), (3024, 6938420), (3040, 6901902), (3192, 6573240), (3249, 6457920), (3255, 6446016), (3348, 6266960), (3360, 6244578), (3420, 6135024), (3472, 6043140), (3534, 5937120), (3591, 5842880), (3610, 5812128), (3648, 5751585), (3720, 5640264), (3780, 5550736), (3844, 5458320), (3906, 5371680), (3990, 5258592), (4032, 5203815), (4104, 5112520), (4123, 5088960), (4185, 5013568), (4256, 4929930), (4320, 4856894), (4332, 4843440), (4340, 4834512), (4464, 4700220), (4560, 4601268), (4712, 4452840), (4788, 4382160), (4805, 4366656), (4960, 4230198), (5040, 4163052), (5054, 4151520), (5130, 4090016), (5208, 4028760), (5301, 3958080), (5320, 3943944), (5415, 3874752), (5472, 3834390), (5580, 3760176), (5766, 3638880), (5776, 3632580), (5859, 3581120), (5890, 3562272), (5952, 3525165), (5985, 3505728), (6048, 3469210), (6080, 3450951), (6384, 3286620), (6498, 3228960), (6510, 3223008), (6696, 3133480), (6720, 3122289), (6727, 3119040), (6840, 3067512), (6944, 3021570), (7068, 2968560), (7182, 2921440), (7220, 2906064), (7440, 2820132), (7560, 2775368), (7581, 2767680), (7688, 2729160), (7812, 2685840), (7980, 2629296), (8208, 2556260), (8246, 2544480), (8370, 2506784), (8512, 2464965), (8640, 2428447), (8649, 2425920), (8664, 2421720), (8680, 2417256), (8835, 2374848), (8928, 2350110), (9120, 2300634), (9424, 2226420), (9576, 2191080), (9610, 2183328), (9747, 2152640), (9765, 2148672), (9920, 2115099), (10080, 2081526), (10108, 2075760), (10260, 2045008), (10416, 2014380), (10602, 1979040), (10640, 1971972), (10830, 1937376), (10944, 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(22382, 937440), (22743, 922560), (23064, 909720), (23104, 908145), (23436, 895280), (23560, 890568), (23940, 876432), (24738, 848160), (25270, 830304), (25536, 821655), (25947, 808640), (25992, 807240), (26040, 805752), (26505, 791616), (26784, 783370), (26908, 779760), (27360, 766878), (28272, 742140), (28728, 730360), (28830, 727776), (28880, 726516), (29295, 716224), (29760, 705033), (30240, 693842), (30324, 691920), (30752, 682290), (31248, 671460), (31806, 659680), (31920, 657324), (32490, 645792), (32832, 639065), (32984, 636120), (33480, 626696), (33573, 624960), (33635, 623808), (34596, 606480), (34656, 605430), (34720, 604314), (35340, 593712), (35910, 584288), (36518, 574560), (37107, 565440), (37696, 556605), (37905, 553536), (38304, 547770), (38440, 545832), (38988, 538160), (39060, 537168), (40362, 519840), (40432, 518940), (41040, 511252), (41230, 508896), (41664, 503595), (42408, 494760), (42560, 492993), (43245, 485184), (43320, 484344), (44640, 470022), (44764, 468720), (45486, 461280), (46128, 454860), (46872, 447640), (47120, 445284), (47880, 438216), (48735, 430528), (49476, 424080), (50540, 415152), (51894, 404320), (51984, 403620), (52080, 402876), (53010, 395808), (53568, 391685), (53816, 389880), (54720, 383439), (54777, 383040), (55955, 374976), (56544, 371070), (57456, 365180), (57660, 363888), (57760, 363258), (58590, 358112), (60480, 346921), (60543, 346560), (60648, 345960), (61504, 341145), (61845, 339264), (62496, 335730), (63612, 329840), (63840, 328662), (64980, 322896), (65968, 318060), (66960, 313348), (67146, 312480), (67270, 311904), (68229, 307520), (69192, 303240), (69312, 302715), (69440, 302157), (70680, 296856), (71820, 292144), (73036, 287280), (74214, 282720), (75810, 276768), (76608, 273885), (76880, 272916), (77976, 269080), (78120, 268584), (78337, 267840), (79515, 263872), (80724, 259920), (80864, 259470), (82080, 255626), (82460, 254448), (84816, 247380), (86490, 242592), (86640, 242172), (89280, 235011), (89528, 234360), (90972, 230640), (91295, 229824), (92256, 227430), (93744, 223820), (94240, 222642), (95760, 219108), (97470, 215264), (98952, 212040), (100719, 208320), (100905, 207936), (101080, 207576), (103788, 202160), (103968, 201810), (104160, 201438), (106020, 197904), (107632, 194940), (109554, 191520), (111321, 188480), (111910, 187488), (113088, 185535), (113715, 184512), (114912, 182590), (115320, 181944), (115520, 181629), (117180, 179056), (121086, 173280), (121296, 172980), (123690, 169632), (124992, 167865), (127224, 164920), (127680, 164331), (127813, 164160), (129735, 161728), (129960, 161448), (131936, 159030), (133920, 156674), (134292, 156240), (134540, 155952), (136458, 153760), (138384, 151620), (141360, 148428), (143640, 146072)]