benchmarks.wiki / Public workspace

Omni-MATH / For a positive integer n, let, τ(n) be the number of positive integer divisors of n. How many integers 1≤n≤50 are there such that τ(τ(n)) is odd? · Discussion

Discussing For a positive integer n, let, τ(n) be the number of positive integer divisors of n. How many integers 1≤n≤50 are there such that τ(τ(n)) is odd? · Omni-MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.