204628880

素因数分解:

$2^4\times 5^1\times {\mathrm{2557861}}^1$

素因数の和:2557874

約数の個数: 20

約数和(自身を含む): 475762332

約数和(自身を除く): 271133452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2557861, 5115722, 10231444, 12789305, 20462888, 25578610, 40925776, 51157220, 102314440, 204628880]

約数ペア:

[(1, 204628880), (2, 102314440), (4, 51157220), (5, 40925776), (8, 25578610), (10, 20462888), (16, 12789305), (20, 10231444), (40, 5115722), (80, 2557861)]