In this paper we obtain an asymptotic formula with a power saving error term for the summation function of a family of generalized least common multiple and greatest common divisor functions of several integer variables.
"On some multivariate LCM and GCD sums,"
Turkish Journal of Mathematics: Vol. 42:
3, Article 43.
Available at: https://journals.tubitak.gov.tr/math/vol42/iss3/43