The GstInput.MouseSensitivity you get from your config file, where it defaults to 40. You can in theory use any value between 1 and 100 here, but 100 is recommended as it fixes a critical issue with dropped packets from the mouse.
You get a different 360 distance in your screenshots because you use a different GstInput.MouseAimSensitivity (1.510511 vs 0.7).
Correct, this is also shown in-game if you hover over the sensitivity options.