218740525

素因数分解:

$5^2\times {\mathrm{131}}^1\times {\mathrm{66791}}^1$

素因数の和:66932

約数の個数: 12

約数和(自身を含む): 273312864

約数和(自身を除く): 54572339

約数列:

[1, 5, 25, 131, 655, 3275, 66791, 333955, 1669775, 8749621, 43748105, 218740525]

約数ペア:

[(1, 218740525), (5, 43748105), (25, 8749621), (131, 1669775), (655, 333955), (3275, 66791)]