19188740

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2003}}^1$

素因数の和:2491

約数の個数: 24

約数和(自身を含む): 40400640

約数和(自身を除く): 21211900

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2003, 2395, 4006, 4790, 8012, 9580, 10015, 20030, 40060, 959437, 1918874, 3837748, 4797185, 9594370, 19188740]

約数ペア:

[(1, 19188740), (2, 9594370), (4, 4797185), (5, 3837748), (10, 1918874), (20, 959437), (479, 40060), (958, 20030), (1916, 10015), (2003, 9580), (2395, 8012), (4006, 4790)]