25620380

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2609}}^1$

素因数の和:3109

約数の個数: 24

約数和(自身を含む): 53933040

約数和(自身を除く): 28312660

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2609, 4910, 5218, 9820, 10436, 13045, 26090, 52180, 1281019, 2562038, 5124076, 6405095, 12810190, 25620380]

約数ペア:

[(1, 25620380), (2, 12810190), (4, 6405095), (5, 5124076), (10, 2562038), (20, 1281019), (491, 52180), (982, 26090), (1964, 13045), (2455, 10436), (2609, 9820), (4910, 5218)]