25920140

素因数分解:

$2^2\times 5^1\times {\mathrm{1296007}}^1$

素因数の和:1296016

約数の個数: 12

約数和(自身を含む): 54432336

約数和(自身を除く): 28512196

約数列:

[1, 2, 4, 5, 10, 20, 1296007, 2592014, 5184028, 6480035, 12960070, 25920140]

約数ペア:

[(1, 25920140), (2, 12960070), (4, 6480035), (5, 5184028), (10, 2592014), (20, 1296007)]