20880400

素因数分解:

$2^4\times 5^2\times {\mathrm{52201}}^1$

素因数の和:52219

約数の個数: 30

約数和(自身を含む): 50166122

約数和(自身を除く): 29285722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52201, 104402, 208804, 261005, 417608, 522010, 835216, 1044020, 1305025, 2088040, 2610050, 4176080, 5220100, 10440200, 20880400]

約数ペア:

[(1, 20880400), (2, 10440200), (4, 5220100), (5, 4176080), (8, 2610050), (10, 2088040), (16, 1305025), (20, 1044020), (25, 835216), (40, 522010), (50, 417608), (80, 261005), (100, 208804), (200, 104402), (400, 52201)]