Erdős Problem #448 — Dyadic Divisor Blocks and Divisor Density
Define to be the number of integers such that has a divisor in ; equivalently, is the cardinality of the image of the divisors of under . Let be the number of divisors of . Is it true that, for every real , the set
has natural density ?
References
Primary source
Additional references
Pinned Formal Conjectures source, Apache-2.0.
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