81578918

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{5003}}^1$

素因数の和:5299

約数の個数: 16

約数和(自身を含む): 126821376

約数和(自身を除く): 45242458

約数列:

[1, 2, 31, 62, 263, 526, 5003, 8153, 10006, 16306, 155093, 310186, 1315789, 2631578, 40789459, 81578918]

約数ペア:

[(1, 81578918), (2, 40789459), (31, 2631578), (62, 1315789), (263, 310186), (526, 155093), (5003, 16306), (8153, 10006)]