128766100

素因数分解:

$2^2\times 5^2\times {\mathrm{1287661}}^1$

素因数の和:1287675

約数の個数: 18

約数和(自身を含む): 279422654

約数和(自身を除く): 150656554

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1287661, 2575322, 5150644, 6438305, 12876610, 25753220, 32191525, 64383050, 128766100]

約数ペア:

[(1, 128766100), (2, 64383050), (4, 32191525), (5, 25753220), (10, 12876610), (20, 6438305), (25, 5150644), (50, 2575322), (100, 1287661)]