8661820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2657}}^1$

素因数の和:2829

約数の個数: 24

約数和(自身を含む): 18308304

約数和(自身を除く): 9646484

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 2657, 3260, 5314, 10628, 13285, 26570, 53140, 433091, 866182, 1732364, 2165455, 4330910, 8661820]

約数ペア:

[(1, 8661820), (2, 4330910), (4, 2165455), (5, 1732364), (10, 866182), (20, 433091), (163, 53140), (326, 26570), (652, 13285), (815, 10628), (1630, 5314), (2657, 3260)]