20123781335

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2003363}}^1$

素因数の和:2003423

約数の個数: 24

約数和(自身を含む): 28776320496

約数和(自身を除く): 8652539161

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 10045, 2003363, 10016815, 14023541, 70117705, 82137883, 98164787, 410689415, 490823935, 574965181, 2874825905, 4024756267, 20123781335]

約数ペア:

[(1, 20123781335), (5, 4024756267), (7, 2874825905), (35, 574965181), (41, 490823935), (49, 410689415), (205, 98164787), (245, 82137883), (287, 70117705), (1435, 14023541), (2009, 10016815), (10045, 2003363)]