138022780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{985877}}^1$

素因数の和:985893

約数の個数: 24

約数和(自身を含む): 331255008

約数和(自身を除く): 193232228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 985877, 1971754, 3943508, 4929385, 6901139, 9858770, 13802278, 19717540, 27604556, 34505695, 69011390, 138022780]

約数ペア:

[(1, 138022780), (2, 69011390), (4, 34505695), (5, 27604556), (7, 19717540), (10, 13802278), (14, 9858770), (20, 6901139), (28, 4929385), (35, 3943508), (70, 1971754), (140, 985877)]