81158980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579707}}^1$

素因数の和:579723

約数の個数: 24

約数和(自身を含む): 194781888

約数和(自身を除く): 113622908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579707, 1159414, 2318828, 2898535, 4057949, 5797070, 8115898, 11594140, 16231796, 20289745, 40579490, 81158980]

約数ペア:

[(1, 81158980), (2, 40579490), (4, 20289745), (5, 16231796), (7, 11594140), (10, 8115898), (14, 5797070), (20, 4057949), (28, 2898535), (35, 2318828), (70, 1159414), (140, 579707)]