18788825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4019}}^1$

素因数の和:4057

約数の個数: 24

約数和(自身を含む): 26917920

約数和(自身を除く): 8129095

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4019, 4675, 20095, 44209, 68323, 100475, 221045, 341615, 751553, 1105225, 1708075, 3757765, 18788825]

約数ペア:

[(1, 18788825), (5, 3757765), (11, 1708075), (17, 1105225), (25, 751553), (55, 341615), (85, 221045), (187, 100475), (275, 68323), (425, 44209), (935, 20095), (4019, 4675)]