210490640

素因数分解:

$2^4\times 5^1\times {\mathrm{2631133}}^1$

素因数の和:2631146

約数の個数: 20

約数和(自身を含む): 489390924

約数和(自身を除く): 278900284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2631133, 5262266, 10524532, 13155665, 21049064, 26311330, 42098128, 52622660, 105245320, 210490640]

約数ペア:

[(1, 210490640), (2, 105245320), (4, 52622660), (5, 42098128), (8, 26311330), (10, 21049064), (16, 13155665), (20, 10524532), (40, 5262266), (80, 2631133)]