81564326

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{3877}}^1$

素因数の和:4103

約数の個数: 16

約数和(自身を含む): 124995696

約数和(自身を除く): 43431370

約数列:

[1, 2, 67, 134, 157, 314, 3877, 7754, 10519, 21038, 259759, 519518, 608689, 1217378, 40782163, 81564326]

約数ペア:

[(1, 81564326), (2, 40782163), (67, 1217378), (134, 608689), (157, 519518), (314, 259759), (3877, 21038), (7754, 10519)]