2005164080

素因数分解:

$2^4\times 5^1\times {\mathrm{25064551}}^1$

素因数の和:25064564

約数の個数: 20

約数和(自身を含む): 4662006672

約数和(自身を除く): 2656842592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25064551, 50129102, 100258204, 125322755, 200516408, 250645510, 401032816, 501291020, 1002582040, 2005164080]

約数ペア:

[(1, 2005164080), (2, 1002582040), (4, 501291020), (5, 401032816), (8, 250645510), (10, 200516408), (16, 125322755), (20, 100258204), (40, 50129102), (80, 25064551)]