81661816

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{857}}^1$

素因数の和:1183

約数の個数: 32

約数和(自身を含む): 157425840

約数和(自身を除く): 75764024

約数列:

[1, 2, 4, 8, 43, 86, 172, 277, 344, 554, 857, 1108, 1714, 2216, 3428, 6856, 11911, 23822, 36851, 47644, 73702, 95288, 147404, 237389, 294808, 474778, 949556, 1899112, 10207727, 20415454, 40830908, 81661816]

約数ペア:

[(1, 81661816), (2, 40830908), (4, 20415454), (8, 10207727), (43, 1899112), (86, 949556), (172, 474778), (277, 294808), (344, 237389), (554, 147404), (857, 95288), (1108, 73702), (1714, 47644), (2216, 36851), (3428, 23822), (6856, 11911)]