64892680

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1487}}^1$

素因数の和:2589

約数の個数: 32

約数和(自身を含む): 146240640

約数和(自身を除く): 81347960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 1487, 2182, 2974, 4364, 5455, 5948, 7435, 8728, 10910, 11896, 14870, 21820, 29740, 43640, 59480, 1622317, 3244634, 6489268, 8111585, 12978536, 16223170, 32446340, 64892680]

約数ペア:

[(1, 64892680), (2, 32446340), (4, 16223170), (5, 12978536), (8, 8111585), (10, 6489268), (20, 3244634), (40, 1622317), (1091, 59480), (1487, 43640), (2182, 29740), (2974, 21820), (4364, 14870), (5455, 11896), (5948, 10910), (7435, 8728)]