20820220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33581}}^1$

素因数の和:33621

約数の個数: 24

約数和(自身を含む): 45134208

約数和(自身を除く): 24313988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33581, 67162, 134324, 167905, 335810, 671620, 1041011, 2082022, 4164044, 5205055, 10410110, 20820220]

約数ペア:

[(1, 20820220), (2, 10410110), (4, 5205055), (5, 4164044), (10, 2082022), (20, 1041011), (31, 671620), (62, 335810), (124, 167905), (155, 134324), (310, 67162), (620, 33581)]