31218700

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4397}}^1$

素因数の和:4482

約数の個数: 36

約数和(自身を含む): 68714352

約数和(自身を除く): 37495652

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 4397, 7100, 8794, 17588, 21985, 43970, 87940, 109925, 219850, 312187, 439700, 624374, 1248748, 1560935, 3121870, 6243740, 7804675, 15609350, 31218700]

約数ペア:

[(1, 31218700), (2, 15609350), (4, 7804675), (5, 6243740), (10, 3121870), (20, 1560935), (25, 1248748), (50, 624374), (71, 439700), (100, 312187), (142, 219850), (284, 109925), (355, 87940), (710, 43970), (1420, 21985), (1775, 17588), (3550, 8794), (4397, 7100)]