81359170

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{198437}}^1$

素因数の和:198485

約数の個数: 16

約数和(自身を含む): 150019128

約数和(自身を除く): 68659958

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 198437, 396874, 992185, 1984370, 8135917, 16271834, 40679585, 81359170]

約数ペア:

[(1, 81359170), (2, 40679585), (5, 16271834), (10, 8135917), (41, 1984370), (82, 992185), (205, 396874), (410, 198437)]