20173778320

素因数分解:

$2^4\times 5^1\times {\mathrm{252172229}}^1$

素因数の和:252172242

約数の個数: 20

約数和(自身を含む): 46904034780

約数和(自身を除く): 26730256460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252172229, 504344458, 1008688916, 1260861145, 2017377832, 2521722290, 4034755664, 5043444580, 10086889160, 20173778320]

約数ペア:

[(1, 20173778320), (2, 10086889160), (4, 5043444580), (5, 4034755664), (8, 2521722290), (10, 2017377832), (16, 1260861145), (20, 1008688916), (40, 504344458), (80, 252172229)]