isabelle/valid/mathd_numbertheory_35.thy (11 lines of code) (raw):
(*
Authors: Wenda Li
*)
theory mathd_numbertheory_35
imports Complex_Main "HOL-Computational_Algebra.Computational_Algebra"
begin
theorem mathd_numbertheory_35:
assumes "k^2 = 196"
shows "(\<Sum> k \<in> { n ::nat. n dvd k}. k) = (24::nat)"
sorry
end