19871180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141937}}^1$

素因数の和:141953

約数の個数: 24

約数和(自身を含む): 47691168

約数和(自身を除く): 27819988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141937, 283874, 567748, 709685, 993559, 1419370, 1987118, 2838740, 3974236, 4967795, 9935590, 19871180]

約数ペア:

[(1, 19871180), (2, 9935590), (4, 4967795), (5, 3974236), (7, 2838740), (10, 1987118), (14, 1419370), (20, 993559), (28, 709685), (35, 567748), (70, 283874), (140, 141937)]