139560020

素因数分解:

$2^2\times 5^1\times {\mathrm{6978001}}^1$

素因数の和:6978010

約数の個数: 12

約数和(自身を含む): 293076084

約数和(自身を除く): 153516064

約数列:

[1, 2, 4, 5, 10, 20, 6978001, 13956002, 27912004, 34890005, 69780010, 139560020]

約数ペア:

[(1, 139560020), (2, 69780010), (4, 34890005), (5, 27912004), (10, 13956002), (20, 6978001)]