20415696825

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6639251}}^1$

素因数の和:6639305

約数の個数: 24

約数和(自身を含む): 34577224416

約数和(自身を除く): 14161527591

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6639251, 19917753, 33196255, 99588765, 165981275, 272209291, 497943825, 816627873, 1361046455, 4083139365, 6805232275, 20415696825]

約数ペア:

[(1, 20415696825), (3, 6805232275), (5, 4083139365), (15, 1361046455), (25, 816627873), (41, 497943825), (75, 272209291), (123, 165981275), (205, 99588765), (615, 33196255), (1025, 19917753), (3075, 6639251)]