CUET Preparation Today
If t(n) = Number of positive divisors of n, n ∈ N, then what is the value of $t(36)$? |
10 8 9 7 |
9 |
The correct answer is option (2) : 9 $36=1×36$ $36=2×18$ $36=3×12$ $36=4×9$ So, +ve divisions of $36=1,2, 3, 4, 6, 9, 12, 18 ,36$ $∴t(28)= 9$ |
