516080

素因数分解:

$2^4\times 5^1\times {\mathrm{6451}}^1$

素因数の和:6464

約数の個数: 20

約数和(自身を含む): 1200072

約数和(自身を除く): 683992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6451, 12902, 25804, 32255, 51608, 64510, 103216, 129020, 258040, 516080]

約数ペア:

[(1, 516080), (2, 258040), (4, 129020), (5, 103216), (8, 64510), (10, 51608), (16, 32255), (20, 25804), (40, 12902), (80, 6451)]