789394220

素因数分解:

$2^2\times 5^1\times {\mathrm{4111}}^1\times {\mathrm{9601}}^1$

素因数の和:13721

約数の個数: 24

約数和(自身を含む): 1658303808

約数和(自身を除く): 868909588

約数列:

[1, 2, 4, 5, 10, 20, 4111, 8222, 9601, 16444, 19202, 20555, 38404, 41110, 48005, 82220, 96010, 192020, 39469711, 78939422, 157878844, 197348555, 394697110, 789394220]

約数ペア:

[(1, 789394220), (2, 394697110), (4, 197348555), (5, 157878844), (10, 78939422), (20, 39469711), (4111, 192020), (8222, 96010), (9601, 82220), (16444, 48005), (19202, 41110), (20555, 38404)]