820399018

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1\times {\mathrm{6947}}^1$

素因数の和:7517

約数の個数: 16

約数和(自身を含む): 1242635904

約数和(自身を除く): 422236886

約数列:

[1, 2, 137, 274, 431, 862, 6947, 13894, 59047, 118094, 951739, 1903478, 2994157, 5988314, 410199509, 820399018]

約数ペア:

[(1, 820399018), (2, 410199509), (137, 5988314), (274, 2994157), (431, 1903478), (862, 951739), (6947, 118094), (13894, 59047)]