389905180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2785037}}^1$

素因数の和:2785053

約数の個数: 24

約数和(自身を含む): 935772768

約数和(自身を除く): 545867588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2785037, 5570074, 11140148, 13925185, 19495259, 27850370, 38990518, 55700740, 77981036, 97476295, 194952590, 389905180]

約数ペア:

[(1, 389905180), (2, 194952590), (4, 97476295), (5, 77981036), (7, 55700740), (10, 38990518), (14, 27850370), (20, 19495259), (28, 13925185), (35, 11140148), (70, 5570074), (140, 2785037)]