99687920

素因数分解:

$2^4\times 5^1\times {\mathrm{1246099}}^1$

素因数の和:1246112

約数の個数: 20

約数和(自身を含む): 231774600

約数和(自身を除く): 132086680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1246099, 2492198, 4984396, 6230495, 9968792, 12460990, 19937584, 24921980, 49843960, 99687920]

約数ペア:

[(1, 99687920), (2, 49843960), (4, 24921980), (5, 19937584), (8, 12460990), (10, 9968792), (16, 6230495), (20, 4984396), (40, 2492198), (80, 1246099)]