An explicit sieve bound and small values of σ(ф(m))
نویسنده
چکیده
We prove an explicit sieve upper bound based on the large sieve of Montgomery and Vaughan [MV], and apply it to show that σ(φ(m)) > m/39.4 for all positive integers m.
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ورودعنوان ژورنال:
- Periodica Mathematica Hungarica
دوره 43 شماره
صفحات -
تاریخ انتشار 2002