18131660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19289}}^1$

素因数の和:19345

約数の個数: 24

約数和(自身を含む): 38888640

約数和(自身を除く): 20756980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19289, 38578, 77156, 96445, 192890, 385780, 906583, 1813166, 3626332, 4532915, 9065830, 18131660]

約数ペア:

[(1, 18131660), (2, 9065830), (4, 4532915), (5, 3626332), (10, 1813166), (20, 906583), (47, 385780), (94, 192890), (188, 96445), (235, 77156), (470, 38578), (940, 19289)]