Los Blancos beat Celta Vigo on Saturday to pull level with Hansi Flick's side but Barcelona swiftly restored their advantage with a dominant display of attacking football.
Veteran striker Lewandowski reached 12 goals in 10 La Liga matches, his strikes sandwiching Pedri Gonzalez's effort from the edge of the box, before substitute Torre added the fourth.
Stanis Idumbo grabbed a consolation for Sevilla in the final stages but Francisco Garcia Pimienta's side were roundly beaten on his return to the club he spent nearly three decades with in various roles.
Torre finished the rout with a crossed free-kick which flew beyond Nyland and in at the far post. Despite upcoming clashes against Bayern Munich in the Champions League and Saturday's visit to the Santiago Bernabeu, Hansi Flick started arguably his strongest fit and available side.
The coach was able to name Dani Olmo, Fermin Lopez and Gavi on the bench after injury, the latter sidelined since November 2023 following a knee operation. Ansu Fati started for the first time this season after Eric Garcia felt discomfort in the warm-up, with Raphinha shifting into a central attacking midfield position.