78872129

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{28817}}^1$

素因数の和:28864

約数の個数: 16

約数和(自身を含む): 99595008

約数和(自身を除く): 20722879

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 28817, 201719, 489889, 662791, 3429223, 4639537, 11267447, 78872129]

約数ペア:

[(1, 78872129), (7, 11267447), (17, 4639537), (23, 3429223), (119, 662791), (161, 489889), (391, 201719), (2737, 28817)]