1. An input device comprising: a position detection sensor configured to detect respective positions of multiple pressing points on an operation face that are simultaneously pressed; a load detection sensor configured to detect a position of a barycenter of the multiple pressing points and a load on the barycenter; and a controller configured to calculate respective loads on the multiple pressing points based on coordinates of the positions of the multiple pressing points, coordinates of the position of the barycenter, and the load on the barycenter.