31455380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142979}}^1$

素因数の和:142999

約数の個数: 24

約数和(自身を含む): 72061920

約数和(自身を除く): 40606540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142979, 285958, 571916, 714895, 1429790, 1572769, 2859580, 3145538, 6291076, 7863845, 15727690, 31455380]

約数ペア:

[(1, 31455380), (2, 15727690), (4, 7863845), (5, 6291076), (10, 3145538), (11, 2859580), (20, 1572769), (22, 1429790), (44, 714895), (55, 571916), (110, 285958), (220, 142979)]