64301360

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1637}}^1$

素因数の和:2141

約数の個数: 40

約数和(自身を含む): 149896656

約数和(自身を除く): 85595296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1637, 1964, 2455, 3274, 3928, 4910, 6548, 7856, 8185, 9820, 13096, 16370, 19640, 26192, 32740, 39280, 65480, 130960, 803767, 1607534, 3215068, 4018835, 6430136, 8037670, 12860272, 16075340, 32150680, 64301360]

約数ペア:

[(1, 64301360), (2, 32150680), (4, 16075340), (5, 12860272), (8, 8037670), (10, 6430136), (16, 4018835), (20, 3215068), (40, 1607534), (80, 803767), (491, 130960), (982, 65480), (1637, 39280), (1964, 32740), (2455, 26192), (3274, 19640), (3928, 16370), (4910, 13096), (6548, 9820), (7856, 8185)]