138605180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{990037}}^1$

素因数の和:990053

約数の個数: 24

約数和(自身を含む): 332652768

約数和(自身を除く): 194047588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 990037, 1980074, 3960148, 4950185, 6930259, 9900370, 13860518, 19800740, 27721036, 34651295, 69302590, 138605180]

約数ペア:

[(1, 138605180), (2, 69302590), (4, 34651295), (5, 27721036), (7, 19800740), (10, 13860518), (14, 9900370), (20, 6930259), (28, 4950185), (35, 3960148), (70, 1980074), (140, 990037)]