2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154423The lower and upper bounds are found for the leading term of summatory totient function $\sum_{k\leq N}k^uϕ^v(k)$ in various ranges of $u\in{\mathbb R}$ and $v\in{\mathbb Z}$.9 pagesNumber Theory11N37text