208291775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{15121}}^1$

素因数の和:15179

約数の個数: 24

約数和(自身を含む): 281269200

約数和(自身を除く): 72977425

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 2755, 13775, 15121, 75605, 287299, 378025, 438509, 1436495, 2192545, 7182475, 8331671, 10962725, 41658355, 208291775]

約数ペア:

[(1, 208291775), (5, 41658355), (19, 10962725), (25, 8331671), (29, 7182475), (95, 2192545), (145, 1436495), (475, 438509), (551, 378025), (725, 287299), (2755, 75605), (13775, 15121)]