\(32=2^5\)
=>Ư(32)={1;2;4;8;16;32}
\(175=5^2\cdot7\)
=>Ư(175)={1;5;7;25;35;175}
\(120=2^3\cdot3\cdot5\)
=>Ư(120)={1;2;3;4;5;6;8;10;12;15;20;24;30;40;60;120}
Ta có :
32 = 52 => Ư (32) = {\(\pm\)1;\(\pm\)2;\(\pm\)4;\(\pm8\);\(\pm16\);\(\pm32\)}
175 = 52.7 => Ư (175) = {\(\pm1\);\(\pm5\);\(\pm7\);\(\pm25\);\(\pm35\);\(\pm175\)}
120 = 23.3.5 => Ư (120) = {\(\pm1\);\(\pm2\);\(\pm3\);\(\pm4\);\(\pm5\);\(\pm6\);\(\pm8\)}
2020 = 22.5.101 => Ư (2020) = {\(\pm1\);\(\pm2\);\(\pm4\);\(\pm5\);\(\pm10\);\(\pm20\);\(\pm202\);\(\pm404\);\(\pm505\);\(\pm2020\)}
32=2532=25
=>Ư(32)={1;2;4;8;16;32}
175=52⋅7175=52⋅7
=>Ư(175)={1;5;7;25;35;175}
120 = 23 ⋅ 3 ⋅ 5120=23 ⋅ 3 ⋅ 5
=>Ư(120)={1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 8 ; 10 ; 12 ; 15 ;20 ;24 ;30 ;40 ;60 ;120 }
32=2532=25
=>Ư(32)={1;2;4;8;16;32}
175=52⋅7175=52⋅7
=>Ư(175)={1;5;7;25;35;175}
120=23⋅3⋅5120=23⋅3⋅5
=>Ư(120)={1;2;3;4;5;6;8;10;12;15;20;24;30;40;60;120}