Has an AFL game ever ended 104-26?
Exactly once. On July 13, 1907, Carlton beat Fitzroy 104-26, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 104-26 in league history.
That makes 104-26 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 105-26 has happened 1 times and 104-27 has happened never.