20115850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13873}}^1$

素因数の和:13914

約数の個数: 24

約数和(自身を含む): 38708460

約数和(自身を除く): 18592610

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 13873, 27746, 69365, 138730, 346825, 402317, 693650, 804634, 2011585, 4023170, 10057925, 20115850]

約数ペア:

[(1, 20115850), (2, 10057925), (5, 4023170), (10, 2011585), (25, 804634), (29, 693650), (50, 402317), (58, 346825), (145, 138730), (290, 69365), (725, 27746), (1450, 13873)]