211313825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 293838336

約数和(自身を除く): 82524511

約数列:

[1, 5, 17, 25, 31, 43, 85, 155, 215, 373, 425, 527, 731, 775, 1075, 1333, 1865, 2635, 3655, 6341, 6665, 9325, 11563, 13175, 16039, 18275, 22661, 31705, 33325, 57815, 80195, 113305, 158525, 196571, 272663, 289075, 400975, 497209, 566525, 982855, 1363315, 2486045, 4914275, 6816575, 8452553, 12430225, 42262765, 211313825]

約数ペア:

[(1, 211313825), (5, 42262765), (17, 12430225), (25, 8452553), (31, 6816575), (43, 4914275), (85, 2486045), (155, 1363315), (215, 982855), (373, 566525), (425, 497209), (527, 400975), (731, 289075), (775, 272663), (1075, 196571), (1333, 158525), (1865, 113305), (2635, 80195), (3655, 57815), (6341, 33325), (6665, 31705), (9325, 22661), (11563, 18275), (13175, 16039)]