398885825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{12653}}^1$

素因数の和:12773

約数の個数: 24

約数和(自身を含む): 538199928

約数和(自身を除く): 139314103

約数列:

[1, 5, 13, 25, 65, 97, 325, 485, 1261, 2425, 6305, 12653, 31525, 63265, 164489, 316325, 822445, 1227341, 4112225, 6136705, 15955433, 30683525, 79777165, 398885825]

約数ペア:

[(1, 398885825), (5, 79777165), (13, 30683525), (25, 15955433), (65, 6136705), (97, 4112225), (325, 1227341), (485, 822445), (1261, 316325), (2425, 164489), (6305, 63265), (12653, 31525)]