31455820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142981}}^1$

素因数の和:143001

約数の個数: 24

約数和(自身を含む): 72062928

約数和(自身を除く): 40607108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142981, 285962, 571924, 714905, 1429810, 1572791, 2859620, 3145582, 6291164, 7863955, 15727910, 31455820]

約数ペア:

[(1, 31455820), (2, 15727910), (4, 7863955), (5, 6291164), (10, 3145582), (11, 2859620), (20, 1572791), (22, 1429810), (44, 714905), (55, 571924), (110, 285962), (220, 142981)]