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Tau numbers, natural density, and Hardy and Wright’s theorem 437. (English) Zbl 0713.11002
Denote by \(\tau(n)\) the number of divisors of \(n\) and call an integer \(n\) a Tau number, if \(\tau(n)\) divides \(n\). The authors show that the natural density of the set of Tau numbers is \(0\).
Reviewer: T.Maxsein

MSC:
11A05 Multiplicative structure; Euclidean algorithm; greatest common divisors
11B83 Special sequences and polynomials
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