20044525

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{2221}}^1$

素因数の和:2269

約数の個数: 18

約数和(自身を含む): 26244042

約数和(自身を除く): 6199517

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 2221, 9025, 11105, 42199, 55525, 210995, 801781, 1054975, 4008905, 20044525]

約数ペア:

[(1, 20044525), (5, 4008905), (19, 1054975), (25, 801781), (95, 210995), (361, 55525), (475, 42199), (1805, 11105), (2221, 9025)]