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arXiv 1902.09224math.NT
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关于整数素因子分解中不同指数的个数

On the number of distinct exponents in the prime factorization of an integer

Carlo Sanna

摘要:

令$f(n)$为自然数$n$的素因子分解中不同指数的数目。证明了关于$f(n)$分布的一些结果。特别地,对于任意正整数$k$,我们得到了$$ \#\{n \leq x : f(n) = k\} \sim A_k x $$和$$ \#\{n \leq x : f(n) = ω(n) - k\} \sim \frac{B x (\log \log x)^k}{k! \log x} , $$为$x \to +\infty$,其中$ω(n)$为$n$的素因子个数,$A_k, B > 0$为某些显式常数.后者的渐近扩展的结果Aktaiden和拉姆Murty关于一些有相互不同的指数在其总理分解。

英文摘要:

Let $f(n)$ be the number of distinct exponents in the prime factorization of the natural number $n$. We prove some results about the distribution of $f(n)$. In particular, for any positive integer $k$, we obtain that $$ \#\{n \leq x : f(n) = k\} \sim A_k x $$ and $$ \#\{n \leq x : f(n) = ω(n) - k\} \sim \frac{B x (\log \log x)^k}{k! \log x} , $$ as $x \to +\infty$, where $ω(n)$ is the number of prime factors of $n$ and $A_k, B > 0$ are some explicit constants. The latter asymptotic extends a result of Aktaş and Ram Murty about numbers having mutually distinct exponents in their prime factorization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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