Mathegoras

Number theory › Divisors › Divisors and common divisors

Nested divisor-count function

Middle school · ●○○○○ 10 pts

Let N\boxed{N} mean the number of positive whole number divisors of NN. For example, 3=2\boxed{3}=2, because 33 has two divisors, 11 and 33. Find the value of 11×20\boxed{\boxed{11}\times\boxed{20}}.

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divisor counting