82315780

素因数分解:

$2^2\times 5^1\times {\mathrm{4115789}}^1$

素因数の和:4115798

約数の個数: 12

約数和(自身を含む): 172863180

約数和(自身を除く): 90547400

約数列:

[1, 2, 4, 5, 10, 20, 4115789, 8231578, 16463156, 20578945, 41157890, 82315780]

約数ペア:

[(1, 82315780), (2, 41157890), (4, 20578945), (5, 16463156), (10, 8231578), (20, 4115789)]