20 x 20 x 20
divisible by 5 and 2

24 x 24 x 24
divisible by 3, 2 and 2

28 x 28 x 28
divisible by 7 and 2

36 x 36 x 36
divisible by 3, 3 and 2 
40 x 40 x 40
divisible by 5, 2 and 2 
44 x 44 x 44
divisible by 11 and 2

48 x 48 x 48
divisible by 3, 2, 2 and 2

52 x 52 x 52
divisible by 13 and 2 
56 x 56 x 56
divisible by 7, 2 and 2

60 x 60 x 60
divisble by 5, 3 and 2 

