78836080

素因数分解:

$2^4\times 5^1\times {\mathrm{985451}}^1$

素因数の和:985464

約数の個数: 20

約数和(自身を含む): 183294072

約数和(自身を除く): 104457992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 985451, 1970902, 3941804, 4927255, 7883608, 9854510, 15767216, 19709020, 39418040, 78836080]

約数ペア:

[(1, 78836080), (2, 39418040), (4, 19709020), (5, 15767216), (8, 9854510), (10, 7883608), (16, 4927255), (20, 3941804), (40, 1970902), (80, 985451)]