31225730

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{19889}}^1$

素因数の和:20053

約数の個数: 16

約数和(自身を含む): 56567160

約数和(自身を除く): 25341430

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 19889, 39778, 99445, 198890, 3122573, 6245146, 15612865, 31225730]

約数ペア:

[(1, 31225730), (2, 15612865), (5, 6245146), (10, 3122573), (157, 198890), (314, 99445), (785, 39778), (1570, 19889)]