31605820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11369}}^1$

素因数の和:11517

約数の個数: 24

約数和(自身を含む): 66855600

約数和(自身を除く): 35249780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 11369, 22738, 45476, 56845, 113690, 227380, 1580291, 3160582, 6321164, 7901455, 15802910, 31605820]

約数ペア:

[(1, 31605820), (2, 15802910), (4, 7901455), (5, 6321164), (10, 3160582), (20, 1580291), (139, 227380), (278, 113690), (556, 56845), (695, 45476), (1390, 22738), (2780, 11369)]