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引用次数: 4
摘要
设!(n)表示正整数n的不同素数因子的个数。我们研究集合fn x: l !(n) jng的基数性，其中l2是任意相对于x足够小的正整数。
Let !(n) denote the number of distinct prime factors of the posi- tive integer n. We study the cardinality of the set fn x : l !(n) j ng, where l 2 is any arbitrary positive integer which is suciently small with respect to x.
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