20565180080

素因数分解:

$2^4\times 5^1\times {\mathrm{257064751}}^1$

素因数の和:257064764

約数の個数: 20

約数和(自身を含む): 47814043872

約数和(自身を除く): 27248863792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257064751, 514129502, 1028259004, 1285323755, 2056518008, 2570647510, 4113036016, 5141295020, 10282590040, 20565180080]

約数ペア:

[(1, 20565180080), (2, 10282590040), (4, 5141295020), (5, 4113036016), (8, 2570647510), (10, 2056518008), (16, 1285323755), (20, 1028259004), (40, 514129502), (80, 257064751)]