18189580

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2053}}^1$

素因数の和:2505

約数の個数: 24

約数和(自身を含む): 38302992

約数和(自身を除く): 20113412

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2053, 2215, 4106, 4430, 8212, 8860, 10265, 20530, 41060, 909479, 1818958, 3637916, 4547395, 9094790, 18189580]

約数ペア:

[(1, 18189580), (2, 9094790), (4, 4547395), (5, 3637916), (10, 1818958), (20, 909479), (443, 41060), (886, 20530), (1772, 10265), (2053, 8860), (2215, 8212), (4106, 4430)]