80187716

素因数分解:

$2^2\times 7^2\times {\mathrm{409121}}^1$

素因数の和:409139

約数の個数: 18

約数和(自身を含む): 163239678

約数和(自身を除く): 83051962

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 409121, 818242, 1636484, 2863847, 5727694, 11455388, 20046929, 40093858, 80187716]

約数ペア:

[(1, 80187716), (2, 40093858), (4, 20046929), (7, 11455388), (14, 5727694), (28, 2863847), (49, 1636484), (98, 818242), (196, 409121)]