31121630

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20887}}^1$

素因数の和:21043

約数の個数: 16

約数和(自身を含む): 56397600

約数和(自身を除く): 25275970

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 20887, 41774, 104435, 208870, 3112163, 6224326, 15560815, 31121630]

約数ペア:

[(1, 31121630), (2, 15560815), (5, 6224326), (10, 3112163), (149, 208870), (298, 104435), (745, 41774), (1490, 20887)]