78336080

素因数分解:

$2^4\times 5^1\times {\mathrm{979201}}^1$

素因数の和:979214

約数の個数: 20

約数和(自身を含む): 182131572

約数和(自身を除く): 103795492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 979201, 1958402, 3916804, 4896005, 7833608, 9792010, 15667216, 19584020, 39168040, 78336080]

約数ペア:

[(1, 78336080), (2, 39168040), (4, 19584020), (5, 15667216), (8, 9792010), (10, 7833608), (16, 4896005), (20, 3916804), (40, 1958402), (80, 979201)]