18429220

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2099}}^1$

素因数の和:2547

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 20378780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2099, 2195, 4198, 4390, 8396, 8780, 10495, 20990, 41980, 921461, 1842922, 3685844, 4607305, 9214610, 18429220]

約数ペア:

[(1, 18429220), (2, 9214610), (4, 4607305), (5, 3685844), (10, 1842922), (20, 921461), (439, 41980), (878, 20990), (1756, 10495), (2099, 8780), (2195, 8396), (4198, 4390)]