15990525

素因数分解:

$3^2\times 5^2\times {\mathrm{71069}}^1$

素因数の和:71085

約数の個数: 18

約数和(自身を含む): 28641210

約数和(自身を除く): 12650685

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 71069, 213207, 355345, 639621, 1066035, 1776725, 3198105, 5330175, 15990525]

約数ペア:

[(1, 15990525), (3, 5330175), (5, 3198105), (9, 1776725), (15, 1066035), (25, 639621), (45, 355345), (75, 213207), (225, 71069)]