78123157

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1\times {\mathrm{757}}^1$

素因数の和:1428

約数の個数: 16

約数和(自身を含む): 93434112

約数和(自身を除く): 15310955

約数列:

[1, 7, 23, 161, 641, 757, 4487, 5299, 14743, 17411, 103201, 121877, 485237, 3396659, 11160451, 78123157]

約数ペア:

[(1, 78123157), (7, 11160451), (23, 3396659), (161, 485237), (641, 121877), (757, 103201), (4487, 17411), (5299, 14743)]