15125980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5441}}^1$

素因数の和:5589

約数の個数: 24

約数和(自身を含む): 31998960

約数和(自身を除く): 16872980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 5441, 10882, 21764, 27205, 54410, 108820, 756299, 1512598, 3025196, 3781495, 7562990, 15125980]

約数ペア:

[(1, 15125980), (2, 7562990), (4, 3781495), (5, 3025196), (10, 1512598), (20, 756299), (139, 108820), (278, 54410), (556, 27205), (695, 21764), (1390, 10882), (2780, 5441)]