Explicație pas cu pas:
[tex]1302 = 2 \times 3 \times 7 \times 31[/tex]
[tex]formula. \: n = (r1 + 1) \times (r2 + 1) \times (r3 + 1)...(rn + 1) \: unde \: r1. \: r2. \: r3... \: sunt \: exponenti \: puterilor[/tex]
[tex](1 + 1) \times (1 + 1) \times (1 + 1) \times (1 + 1) = 2 \times 2 \times 2 \times 2 = 4 \times 4 = 16 \: divizori \: [/tex]
[tex]1440 = {2}^{5} \times {3}^{2} \times 5 = > (5 + 1) \times (2 + 1) \times (1 + 1) = 6 \times 3 \times 2 = 6 \times 6 = 36 \: divizori[/tex]
