31290820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142231}}^1$

素因数の和:142251

約数の個数: 24

約数和(自身を含む): 71684928

約数和(自身を除く): 40394108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142231, 284462, 568924, 711155, 1422310, 1564541, 2844620, 3129082, 6258164, 7822705, 15645410, 31290820]

約数ペア:

[(1, 31290820), (2, 15645410), (4, 7822705), (5, 6258164), (10, 3129082), (11, 2844620), (20, 1564541), (22, 1422310), (44, 711155), (55, 568924), (110, 284462), (220, 142231)]