128678060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{919129}}^1$

素因数の和:919145

約数の個数: 24

約数和(自身を含む): 308827680

約数和(自身を除く): 180149620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 919129, 1838258, 3676516, 4595645, 6433903, 9191290, 12867806, 18382580, 25735612, 32169515, 64339030, 128678060]

約数ペア:

[(1, 128678060), (2, 64339030), (4, 32169515), (5, 25735612), (7, 18382580), (10, 12867806), (14, 9191290), (20, 6433903), (28, 4595645), (35, 3676516), (70, 1838258), (140, 919129)]