28562020

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1621}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 60085368

約数和(自身を除く): 31523348

約数列:

[1, 2, 4, 5, 10, 20, 881, 1621, 1762, 3242, 3524, 4405, 6484, 8105, 8810, 16210, 17620, 32420, 1428101, 2856202, 5712404, 7140505, 14281010, 28562020]

約数ペア:

[(1, 28562020), (2, 14281010), (4, 7140505), (5, 5712404), (10, 2856202), (20, 1428101), (881, 32420), (1621, 17620), (1762, 16210), (3242, 8810), (3524, 8105), (4405, 6484)]