20/24.

There is a 3x3 grid (so 9 stickers) in each of the 5 corners of each face, so 9x5 = 45 stickers, as well as 3 on each of the 5 edges (so 15 stickers), and 1 centre, so 45+15+1 = 61 stickers per face. 61x12 = 60x12+12 = 60x10+60x2+12 = 600+120+12 = 732.