77990120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 193687200

約数和(自身を除く): 115697080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 139, 166, 169, 260, 278, 332, 338, 415, 520, 556, 664, 676, 695, 830, 845, 1079, 1112, 1352, 1390, 1660, 1690, 1807, 2158, 2780, 3320, 3380, 3614, 4316, 5395, 5560, 6760, 7228, 8632, 9035, 10790, 11537, 14027, 14456, 18070, 21580, 23074, 23491, 28054, 36140, 43160, 46148, 46982, 56108, 57685, 70135, 72280, 92296, 93964, 112216, 115370, 117455, 140270, 149981, 187928, 230740, 234910, 280540, 299962, 461480, 469820, 561080, 599924, 749905, 939640, 1199848, 1499810, 1949753, 2999620, 3899506, 5999240, 7799012, 9748765, 15598024, 19497530, 38995060, 77990120]

約数ペア:

[(1, 77990120), (2, 38995060), (4, 19497530), (5, 15598024), (8, 9748765), (10, 7799012), (13, 5999240), (20, 3899506), (26, 2999620), (40, 1949753), (52, 1499810), (65, 1199848), (83, 939640), (104, 749905), (130, 599924), (139, 561080), (166, 469820), (169, 461480), (260, 299962), (278, 280540), (332, 234910), (338, 230740), (415, 187928), (520, 149981), (556, 140270), (664, 117455), (676, 115370), (695, 112216), (830, 93964), (845, 92296), (1079, 72280), (1112, 70135), (1352, 57685), (1390, 56108), (1660, 46982), (1690, 46148), (1807, 43160), (2158, 36140), (2780, 28054), (3320, 23491), (3380, 23074), (3614, 21580), (4316, 18070), (5395, 14456), (5560, 14027), (6760, 11537), (7228, 10790), (8632, 9035)]