3988895080

素因数分解:

$2^3\times 5^1\times {\mathrm{99722377}}^1$

素因数の和:99722388

約数の個数: 16

約数和(自身を含む): 8975014020

約数和(自身を除く): 4986118940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 99722377, 199444754, 398889508, 498611885, 797779016, 997223770, 1994447540, 3988895080]

約数ペア:

[(1, 3988895080), (2, 1994447540), (4, 997223770), (5, 797779016), (8, 498611885), (10, 398889508), (20, 199444754), (40, 99722377)]