812080

素因数分解:

$2^4\times 5^1\times {\mathrm{10151}}^1$

素因数の和:10164

約数の個数: 20

約数和(自身を含む): 1888272

約数和(自身を除く): 1076192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10151, 20302, 40604, 50755, 81208, 101510, 162416, 203020, 406040, 812080]

約数ペア:

[(1, 812080), (2, 406040), (4, 203020), (5, 162416), (8, 101510), (10, 81208), (16, 50755), (20, 40604), (40, 20302), (80, 10151)]