81358256

素因数分解:

$2^4\times 7^1\times {\mathrm{726413}}^1$

素因数の和:726428

約数の個数: 20

約数和(自身を含む): 180150672

約数和(自身を除く): 98792416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 726413, 1452826, 2905652, 5084891, 5811304, 10169782, 11622608, 20339564, 40679128, 81358256]

約数ペア:

[(1, 81358256), (2, 40679128), (4, 20339564), (7, 11622608), (8, 10169782), (14, 5811304), (16, 5084891), (28, 2905652), (56, 1452826), (112, 726413)]