Question

Tìm Ư ( 140)

Answer 1

Ư(140)= {1,2,4,5,7,10,14,20,28,35,70,140}

Answer 2

Ư(140)={1;2;4;5;7;10;14;20;28;35;70;140}

Answer 3

U(140)={1,2,4,5,7,10,14,20,28,35,70,140}