Question

calculati divizori numerelor :1,2,5,10,16,72

Answer 1

divizori improprii :  1 si el insusi si
proprii toate numerele care se impart exact la nr dat
deci
1 are ca divizor { 1}
2  are  {1,2}
5 are   {1,5}
10 are  {1,2,5,10}
16=2×8=2×2³    are {1,2,4,8,16)
72=2³+3²  deci are divizori :{1,2,3,2², 2³, 3,3², 2×3, 2×3², 2²×3, 2²×3², 2³×3 
sau
=(1 ,2,3,4, 8, 3,9, 6, 18, 12, 36, 72}=
72 are divizorii :  {1,2,3,4,6,8,9,12,18,36,72}