128257425

素因数分解:

$3^4\times 5^2\times {\mathrm{63337}}^1$

素因数の和:63359

約数の個数: 30

約数和(自身を含む): 237580838

約数和(自身を除く): 109323413

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 63337, 190011, 316685, 570033, 950055, 1583425, 1710099, 2850165, 4750275, 5130297, 8550495, 14250825, 25651485, 42752475, 128257425]

約数ペア:

[(1, 128257425), (3, 42752475), (5, 25651485), (9, 14250825), (15, 8550495), (25, 5130297), (27, 4750275), (45, 2850165), (75, 1710099), (81, 1583425), (135, 950055), (225, 570033), (405, 316685), (675, 190011), (2025, 63337)]