81369080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{937}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 198555840

約数和(自身を除く): 117186760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 520, 668, 835, 937, 1336, 1670, 1874, 2171, 3340, 3748, 4342, 4685, 6680, 7496, 8684, 9370, 10855, 12181, 17368, 18740, 21710, 24362, 37480, 43420, 48724, 60905, 86840, 97448, 121810, 156479, 243620, 312958, 487240, 625916, 782395, 1251832, 1564790, 2034227, 3129580, 4068454, 6259160, 8136908, 10171135, 16273816, 20342270, 40684540, 81369080]

約数ペア:

[(1, 81369080), (2, 40684540), (4, 20342270), (5, 16273816), (8, 10171135), (10, 8136908), (13, 6259160), (20, 4068454), (26, 3129580), (40, 2034227), (52, 1564790), (65, 1251832), (104, 782395), (130, 625916), (167, 487240), (260, 312958), (334, 243620), (520, 156479), (668, 121810), (835, 97448), (937, 86840), (1336, 60905), (1670, 48724), (1874, 43420), (2171, 37480), (3340, 24362), (3748, 21710), (4342, 18740), (4685, 17368), (6680, 12181), (7496, 10855), (8684, 9370)]