64260400

素因数分解:

$2^4\times 5^2\times {\mathrm{160651}}^1$

素因数の和:160669

約数の個数: 30

約数和(自身を含む): 154386572

約数和(自身を除く): 90126172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 160651, 321302, 642604, 803255, 1285208, 1606510, 2570416, 3213020, 4016275, 6426040, 8032550, 12852080, 16065100, 32130200, 64260400]

約数ペア:

[(1, 64260400), (2, 32130200), (4, 16065100), (5, 12852080), (8, 8032550), (10, 6426040), (16, 4016275), (20, 3213020), (25, 2570416), (40, 1606510), (50, 1285208), (80, 803255), (100, 642604), (200, 321302), (400, 160651)]