No, you are confusing the crop factor, and or format equivilencies.
On the same camera with the same frame/sensor size behind the lens, a lens is a lens is a lens, and an 80mm lens from an MF camera remains an 80mm lens, whether its on that Medium Format 120 roll-film camera it's native to, on a 35mmm SLR or on a 'Full-Frame' Digital SLR or a 'half frame' APS-C sensor DSLR, on a Micro-Four-Thirds sensor camera, a 110 Instamatic or a micro-sensor action-cam or smurfone... what alters the angle of view you get is the width of the sensor behind the lens; the lens dont change. Same width sensor, same focal length you get the same Angle of View, no crop-factor to be applied.
The crop factor is an 'equivalence' to the focal length of lens that delivers an 'equivalent' angle of view, on a different format/sensor size. In this case it dont apply, 'cos the sensor is the same. and the focal lengths are the same.
Side note having mentioned Medium-Format 120 roll film; This is 6cm wide; and commonly cameras have traps that may put either a 4.5x6cm frame on the film, a 6x6cm 'square' frame, or a 6x9cm frame, and on some cameras, the frame is interchangeable, so that you can take more pictures per roll, or get bigger, higher quality negatives. Either way, the lens on the front, commonly an 80mm, gives the same Angle-of-View on the focal plane.. its just that when you put the smaller frame behind it, you mask or 'crop', hence 'crop-factor', more or less off the sides of your photo... BUT the lens does not mystically change focal length when you put a bigger or smaller masking frame behind it; it remains what it is, and any other lens of or set to that focal length should deliver the same AoV.
Make sense?