18865580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55487}}^1$

素因数の和:55513

約数の個数: 24

約数和(自身を含む): 41948928

約数和(自身を除く): 23083348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55487, 110974, 221948, 277435, 554870, 943279, 1109740, 1886558, 3773116, 4716395, 9432790, 18865580]

約数ペア:

[(1, 18865580), (2, 9432790), (4, 4716395), (5, 3773116), (10, 1886558), (17, 1109740), (20, 943279), (34, 554870), (68, 277435), (85, 221948), (170, 110974), (340, 55487)]