258050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:422

約数の個数: 24

約数和(自身を含む): 518196

約数和(自身を除く): 260146

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 397, 650, 794, 1985, 3970, 5161, 9925, 10322, 19850, 25805, 51610, 129025, 258050]

約数ペア:

[(1, 258050), (2, 129025), (5, 51610), (10, 25805), (13, 19850), (25, 10322), (26, 9925), (50, 5161), (65, 3970), (130, 1985), (325, 794), (397, 650)]