18100180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129287}}^1$

素因数の和:129303

約数の個数: 24

約数和(自身を含む): 43440768

約数和(自身を除く): 25340588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129287, 258574, 517148, 646435, 905009, 1292870, 1810018, 2585740, 3620036, 4525045, 9050090, 18100180]

約数ペア:

[(1, 18100180), (2, 9050090), (4, 4525045), (5, 3620036), (7, 2585740), (10, 1810018), (14, 1292870), (20, 905009), (28, 646435), (35, 517148), (70, 258574), (140, 129287)]