If t(n) = Number of positive divisors of n, n ∈ N, then what is the value of $t(36)$?
Answer & explanation
Correct answer: option 3
The correct answer is option (2) : 9
$36=1×36$
$36=2×18$
$36=3×12$
$36=4×9$
So, +ve divisions of $36=1,2, 3, 4, 6, 9, 12, 18 ,36$
$∴t(28)= 9$