12728525

素因数分解:

$5^2\times {\mathrm{71}}^2\times {\mathrm{101}}^1$

素因数の和:253

約数の個数: 18

約数和(自身を含む): 16167306

約数和(自身を除く): 3438781

約数列:

[1, 5, 25, 71, 101, 355, 505, 1775, 2525, 5041, 7171, 25205, 35855, 126025, 179275, 509141, 2545705, 12728525]

約数ペア:

[(1, 12728525), (5, 2545705), (25, 509141), (71, 179275), (101, 126025), (355, 35855), (505, 25205), (1775, 7171), (2525, 5041)]