20540846760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{788819}}^1$

素因数の和:788871

約数の個数: 128

約数和(自身を含む): 72697651200

約数和(自身を除く): 52156804440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 13020, 26040, 788819, 1577638, 2366457, 3155276, 3944095, 4732914, 5521733, 6310552, 7888190, 9465828, 11043466, 11832285, 15776380, 16565199, 18931656, 22086932, 23664570, 24453389, 27608665, 31552760, 33130398, 44173864, 47329140, 48906778, 55217330, 66260796, 73360167, 82825995, 94658280, 97813556, 110434660, 122266945, 132521592, 146720334, 165651990, 171173723, 195627112, 220869320, 244533890, 293440668, 331303980, 342347446, 366800835, 489067780, 513521169, 586881336, 662607960, 684694892, 733601670, 855868615, 978135560, 1027042338, 1369389784, 1467203340, 1711737230, 2054084676, 2567605845, 2934406680, 3423474460, 4108169352, 5135211690, 6846948920, 10270423380, 20540846760]

約数ペア:

[(1, 20540846760), (2, 10270423380), (3, 6846948920), (4, 5135211690), (5, 4108169352), (6, 3423474460), (7, 2934406680), (8, 2567605845), (10, 2054084676), (12, 1711737230), (14, 1467203340), (15, 1369389784), (20, 1027042338), (21, 978135560), (24, 855868615), (28, 733601670), (30, 684694892), (31, 662607960), (35, 586881336), (40, 513521169), (42, 489067780), (56, 366800835), (60, 342347446), (62, 331303980), (70, 293440668), (84, 244533890), (93, 220869320), (105, 195627112), (120, 171173723), (124, 165651990), (140, 146720334), (155, 132521592), (168, 122266945), (186, 110434660), (210, 97813556), (217, 94658280), (248, 82825995), (280, 73360167), (310, 66260796), (372, 55217330), (420, 48906778), (434, 47329140), (465, 44173864), (620, 33130398), (651, 31552760), (744, 27608665), (840, 24453389), (868, 23664570), (930, 22086932), (1085, 18931656), (1240, 16565199), (1302, 15776380), (1736, 11832285), (1860, 11043466), (2170, 9465828), (2604, 7888190), (3255, 6310552), (3720, 5521733), (4340, 4732914), (5208, 3944095), (6510, 3155276), (8680, 2366457), (13020, 1577638), (26040, 788819)]