78721124

素因数分解:

$2^2\times {\mathrm{2221}}^1\times {\mathrm{8861}}^1$

素因数の和:11086

約数の個数: 12

約数和(自身を含む): 137839548

約数和(自身を除く): 59118424

約数列:

[1, 2, 4, 2221, 4442, 8861, 8884, 17722, 35444, 19680281, 39360562, 78721124]

約数ペア:

[(1, 78721124), (2, 39360562), (4, 19680281), (2221, 35444), (4442, 17722), (8861, 8884)]