Erdős problem 647 · problems.science

Let $\tau(n)$ count the number of divisors of $n$ . Is there some $n > 24$ such that $\max_{m < n}(m + \tau(m)) \leq n + 2?$

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4 retained statements2415f78e850a

FormalConjectures/ErdosProblems/

647.lean

Retained formal statement4 of 4

This is true for $n = 24$ .

FormalConjectures/ErdosProblems/647.leanErdos647.erdos_647.variants.twenty_four1 lineExact file

1⨆ m, ↑m + (ArithmeticFunction.sigma 0) ↑m ≤ 26

SolvedStatement only, no proof