28634380

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1291}}^1$

素因数の和:2409

約数の個数: 24

約数和(自身を含む): 60233040

約数和(自身を除く): 31598660

約数列:

[1, 2, 4, 5, 10, 20, 1109, 1291, 2218, 2582, 4436, 5164, 5545, 6455, 11090, 12910, 22180, 25820, 1431719, 2863438, 5726876, 7158595, 14317190, 28634380]

約数ペア:

[(1, 28634380), (2, 14317190), (4, 7158595), (5, 5726876), (10, 2863438), (20, 1431719), (1109, 25820), (1291, 22180), (2218, 12910), (2582, 11090), (4436, 6455), (5164, 5545)]