22122220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1151}}^1$

素因数の和:1222

約数の個数: 36

約数和(自身を含む): 48045312

約数和(自身を除く): 25923092

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1151, 1922, 2302, 3844, 4604, 4805, 5755, 9610, 11510, 19220, 23020, 35681, 71362, 142724, 178405, 356810, 713620, 1106111, 2212222, 4424444, 5530555, 11061110, 22122220]

約数ペア:

[(1, 22122220), (2, 11061110), (4, 5530555), (5, 4424444), (10, 2212222), (20, 1106111), (31, 713620), (62, 356810), (124, 178405), (155, 142724), (310, 71362), (620, 35681), (961, 23020), (1151, 19220), (1922, 11510), (2302, 9610), (3844, 5755), (4604, 4805)]