138621140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{990151}}^1$

素因数の和:990167

約数の個数: 24

約数和(自身を含む): 332691072

約数和(自身を除く): 194069932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 990151, 1980302, 3960604, 4950755, 6931057, 9901510, 13862114, 19803020, 27724228, 34655285, 69310570, 138621140]

約数ペア:

[(1, 138621140), (2, 69310570), (4, 34655285), (5, 27724228), (7, 19803020), (10, 13862114), (14, 9901510), (20, 6931057), (28, 4950755), (35, 3960604), (70, 1980302), (140, 990151)]