80212866040

素因数分解:

$2^3\times 5^1\times {\mathrm{2005321651}}^1$

素因数の和:2005321662

約数の個数: 16

約数和(自身を含む): 180478948680

約数和(自身を除く): 100266082640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2005321651, 4010643302, 8021286604, 10026608255, 16042573208, 20053216510, 40106433020, 80212866040]

約数ペア:

[(1, 80212866040), (2, 40106433020), (4, 20053216510), (5, 16042573208), (8, 10026608255), (10, 8021286604), (20, 4010643302), (40, 2005321651)]