%0 Journal Article %T Quasi-modularity of generalized sum-of-divisors functions %A Simon Rose %J Mathematics %D 2015 %I arXiv %X In 1919, P. A. MacMahon studied generating functions for generalized divisor sums. In this paper, we provide a framework in which to view these generating functions in terms of Jacobi forms, and prove that they are quasi-modular forms. %U http://arxiv.org/abs/1506.04963v2