87290740

素因数分解:

$2^2\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{2179}}^1$

素因数の和:4191

約数の個数: 24

約数和(自身を含む): 183486240

約数和(自身を除く): 96195500

約数列:

[1, 2, 4, 5, 10, 20, 2003, 2179, 4006, 4358, 8012, 8716, 10015, 10895, 20030, 21790, 40060, 43580, 4364537, 8729074, 17458148, 21822685, 43645370, 87290740]

約数ペア:

[(1, 87290740), (2, 43645370), (4, 21822685), (5, 17458148), (10, 8729074), (20, 4364537), (2003, 43580), (2179, 40060), (4006, 21790), (4358, 20030), (8012, 10895), (8716, 10015)]