Lapkova Kostadinka
Institute of Analysis and Number Theory, Graz University of Technology, Kopernikusgasse 24/II, 8010 Graz, Austria.
Mon Hefte Math. 2018;186(4):663-673. doi: 10.1007/s00605-017-1061-y. Epub 2017 May 27.
Consider the divisor sum for integers and . We extract an asymptotic formula for the average divisor sum in a convenient form, and provide an explicit upper bound for this sum with the correct main term. As an application we give an improvement of the maximal possible number of -quadruples.
考虑整数(m)和(n)的除数和。我们以一种方便的形式提取平均除数和的渐近公式,并给出该和带有正确主项的显式上界。作为一个应用,我们改进了(n)-四元组的最大可能数量。