64968080

素因数分解:

$2^4\times 5^1\times {\mathrm{812101}}^1$

素因数の和:812114

約数の個数: 20

約数和(自身を含む): 151050972

約数和(自身を除く): 86082892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 812101, 1624202, 3248404, 4060505, 6496808, 8121010, 12993616, 16242020, 32484040, 64968080]

約数ペア:

[(1, 64968080), (2, 32484040), (4, 16242020), (5, 12993616), (8, 8121010), (10, 6496808), (16, 4060505), (20, 3248404), (40, 1624202), (80, 812101)]