256403870

素因数分解:

$2^1\times 5^1\times {\mathrm{1187}}^1\times {\mathrm{21601}}^1$

素因数の和:22795

約数の個数: 16

約数和(自身を含む): 461937168

約数和(自身を除く): 205533298

約数列:

[1, 2, 5, 10, 1187, 2374, 5935, 11870, 21601, 43202, 108005, 216010, 25640387, 51280774, 128201935, 256403870]

約数ペア:

[(1, 256403870), (2, 128201935), (5, 51280774), (10, 25640387), (1187, 216010), (2374, 108005), (5935, 43202), (11870, 21601)]