87942740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{102259}}^1$

素因数の和:102311

約数の個数: 24

約数和(自身を含む): 188976480

約数和(自身を除く): 101033740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 102259, 204518, 409036, 511295, 1022590, 2045180, 4397137, 8794274, 17588548, 21985685, 43971370, 87942740]

約数ペア:

[(1, 87942740), (2, 43971370), (4, 21985685), (5, 17588548), (10, 8794274), (20, 4397137), (43, 2045180), (86, 1022590), (172, 511295), (215, 409036), (430, 204518), (860, 102259)]