389936080

素因数分解:

$2^4\times 5^1\times {\mathrm{4874201}}^1$

素因数の和:4874214

約数の個数: 20

約数和(自身を含む): 906601572

約数和(自身を除く): 516665492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4874201, 9748402, 19496804, 24371005, 38993608, 48742010, 77987216, 97484020, 194968040, 389936080]

約数ペア:

[(1, 389936080), (2, 194968040), (4, 97484020), (5, 77987216), (8, 48742010), (10, 38993608), (16, 24371005), (20, 19496804), (40, 9748402), (80, 4874201)]