64311580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169241}}^1$

素因数の和:169269

約数の個数: 24

約数和(自身を含む): 142163280

約数和(自身を除く): 77851700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 169241, 338482, 676964, 846205, 1692410, 3215579, 3384820, 6431158, 12862316, 16077895, 32155790, 64311580]

約数ペア:

[(1, 64311580), (2, 32155790), (4, 16077895), (5, 12862316), (10, 6431158), (19, 3384820), (20, 3215579), (38, 1692410), (76, 846205), (95, 676964), (190, 338482), (380, 169241)]