How does the length of the Lever Arm effect Torque?

As you could see from the video, the door was more difficult for Lauren to push when she pushes it from the inner side of the door rather than the outer side. This concept goes back to the equation
T (torque) = r (lever arm) x F (force). When Lauren pushes the door from the inner edge, she is shortening the lever arm, which then requires more force to exert the same amount of torque. For example, if a very large door requires a torque of 100 NxM (newtons per meter) to move, and Lauren is pushing the door at 10 M from the fulcrum, Lauren needs to provide 10 N of force. However, to push the same door with a torque of 100 NxM from 2 M from the fulcrum, Lauren needs to provide 50N of force. So, it would make sense that it is easier for Lauren to push the door from the outside because she is extending the lever arm and requiring less force.