290321975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{3709}}^1$

素因数の和:3851

約数の個数: 24

約数和(自身を含む): 375392640

約数和(自身を除く): 85070665

約数列:

[1, 5, 25, 31, 101, 155, 505, 775, 2525, 3131, 3709, 15655, 18545, 78275, 92725, 114979, 374609, 574895, 1873045, 2874475, 9365225, 11612879, 58064395, 290321975]

約数ペア:

[(1, 290321975), (5, 58064395), (25, 11612879), (31, 9365225), (101, 2874475), (155, 1873045), (505, 574895), (775, 374609), (2525, 114979), (3131, 92725), (3709, 78275), (15655, 18545)]