79938640

素因数分解:

$2^4\times 5^1\times {\mathrm{999233}}^1$

素因数の和:999246

約数の個数: 20

約数和(自身を含む): 185857524

約数和(自身を除く): 105918884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 999233, 1998466, 3996932, 4996165, 7993864, 9992330, 15987728, 19984660, 39969320, 79938640]

約数ペア:

[(1, 79938640), (2, 39969320), (4, 19984660), (5, 15987728), (8, 9992330), (10, 7993864), (16, 4996165), (20, 3996932), (40, 1998466), (80, 999233)]