Ư(572)
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a: Ư(15)={1;-1;3;-3;5;-5;15;-15}
Ư(27)={1;-1;3;-3;9;-9;27;-27}
ƯC(15;27)={1;-1;3;-3}
b: Ư(16)={1;-1;2;-2;4;-4;8;-8;16;-16}
Ư(20)={1;-1;2;-2;4;-4;5;-5;10;-10;20;-20}
Ư(30)={1;-1;2;-2;3;-3;5;-5;6;-6;10;-10;15;-15;30;-30}
ƯC(16;20;30)={1;-1;2;-2}
\(Ư\left(144\right)=\left\{1,2,3,4,6,8,9,12,16,18,24,36,48,72,144\right\}\)
\(Ư\left(324\right)=\left\{1,2,3,4,6,9,12,18,27,36,54,81,108,162,324\right\}\)
\(Ư\left(576\right)=\left\{1,2,3,4,6,8,9,12,16,18,24,32,36,48,64,72,96,144,192,288,576\right\}\)
\(Ư\left(1024\right)=\left\{1,2,4,8,16,32,64,128,256,512,1024\right\}\)
\(Ư\left(1296\right)=\left\{1,2,3,4,6,8,9,12,16,24,27,36,48,54,72,81,108,144,162,216,324,432,648,1296\right\}\)
Ư(572) = {1,2,4,11,13,22,26,44,52,143,286,572}