18879740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85817}}^1$

素因数の和:85837

約数の個数: 24

約数和(自身を含む): 43252272

約数和(自身を除く): 24372532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85817, 171634, 343268, 429085, 858170, 943987, 1716340, 1887974, 3775948, 4719935, 9439870, 18879740]

約数ペア:

[(1, 18879740), (2, 9439870), (4, 4719935), (5, 3775948), (10, 1887974), (11, 1716340), (20, 943987), (22, 858170), (44, 429085), (55, 343268), (110, 171634), (220, 85817)]