20517425

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{541}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 26815992

約数和(自身を除く): 6298567

約数列:

[1, 5, 25, 37, 41, 185, 205, 541, 925, 1025, 1517, 2705, 7585, 13525, 20017, 22181, 37925, 100085, 110905, 500425, 554525, 820697, 4103485, 20517425]

約数ペア:

[(1, 20517425), (5, 4103485), (25, 820697), (37, 554525), (41, 500425), (185, 110905), (205, 100085), (541, 37925), (925, 22181), (1025, 20017), (1517, 13525), (2705, 7585)]