20646620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33301}}^1$

素因数の和:33341

約数の個数: 24

約数和(自身を含む): 44757888

約数和(自身を除く): 24111268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33301, 66602, 133204, 166505, 333010, 666020, 1032331, 2064662, 4129324, 5161655, 10323310, 20646620]

約数ペア:

[(1, 20646620), (2, 10323310), (4, 5161655), (5, 4129324), (10, 2064662), (20, 1032331), (31, 666020), (62, 333010), (124, 166505), (155, 133204), (310, 66602), (620, 33301)]