68809580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491497}}^1$

素因数の和:491513

約数の個数: 24

約数和(自身を含む): 165143328

約数和(自身を除く): 96333748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491497, 982994, 1965988, 2457485, 3440479, 4914970, 6880958, 9829940, 13761916, 17202395, 34404790, 68809580]

約数ペア:

[(1, 68809580), (2, 34404790), (4, 17202395), (5, 13761916), (7, 9829940), (10, 6880958), (14, 4914970), (20, 3440479), (28, 2457485), (35, 1965988), (70, 982994), (140, 491497)]