Răspuns :

Petrwid
D 120= 1,2,3,4,5,6,10,12,15,20,24,30,40,60,120 (15 divizori)
D72= 1,2,3,4,6,9,6,12,18,24,36,72(12 divizori)
D 225= 1,3,5,9,15,25,45,75,225 (9 divizori)
D 300=1,2,3,4,5,6,10,12,15,25,50,75,100,150,300(15 divizori)
Rawanid
D₁₂₀ = { 1 , 2 , 3 , 4 , 5 , 6 , 10 , 12 , 15,20,24,30,40,60,120 }  ⇒15 divizori . 

D₇₂={  1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 } ⇒12 divizori . 

D₂₂₅ = { 1 ,3 ,  5 , 9 , 15 , 25 , 45 , 75 , 225} ⇒ 9 divizori . 

D₃₀₀={1 , 3 ,5 , 6 ,  10 ,15  30 , 60 , 100 , 150 , 300 } ⇒ 11 divizori . 

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