31130860

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{1279}}^1$

素因数の和:2505

約数の個数: 24

約数和(自身を含む): 65479680

約数和(自身を除く): 34348820

約数列:

[1, 2, 4, 5, 10, 20, 1217, 1279, 2434, 2558, 4868, 5116, 6085, 6395, 12170, 12790, 24340, 25580, 1556543, 3113086, 6226172, 7782715, 15565430, 31130860]

約数ペア:

[(1, 31130860), (2, 15565430), (4, 7782715), (5, 6226172), (10, 3113086), (20, 1556543), (1217, 25580), (1279, 24340), (2434, 12790), (2558, 12170), (4868, 6395), (5116, 6085)]