81655666

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{2129}}^1$

素因数の和:2409

約数の個数: 16

約数和(自身を含む): 124323840

約数和(自身を除く): 42668174

約数列:

[1, 2, 127, 151, 254, 302, 2129, 4258, 19177, 38354, 270383, 321479, 540766, 642958, 40827833, 81655666]

約数ペア:

[(1, 81655666), (2, 40827833), (127, 642958), (151, 540766), (254, 321479), (302, 270383), (2129, 38354), (4258, 19177)]