19943620

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1823}}^1$

素因数の和:2379

約数の個数: 24

約数和(自身を含む): 41981184

約数和(自身を除く): 22037564

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 1823, 2188, 2735, 3646, 5470, 7292, 9115, 10940, 18230, 36460, 997181, 1994362, 3988724, 4985905, 9971810, 19943620]

約数ペア:

[(1, 19943620), (2, 9971810), (4, 4985905), (5, 3988724), (10, 1994362), (20, 997181), (547, 36460), (1094, 18230), (1823, 10940), (2188, 9115), (2735, 7292), (3646, 5470)]