2722420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4391}}^1$

素因数の和:4431

約数の個数: 24

約数和(自身を含む): 5902848

約数和(自身を除く): 3180428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 4391, 8782, 17564, 21955, 43910, 87820, 136121, 272242, 544484, 680605, 1361210, 2722420]

約数ペア:

[(1, 2722420), (2, 1361210), (4, 680605), (5, 544484), (10, 272242), (20, 136121), (31, 87820), (62, 43910), (124, 21955), (155, 17564), (310, 8782), (620, 4391)]