Milwaukee has 64.2% chance of winning the lottery so they have 642 combinations, and so on for every team. Phoenix has 0.5% chance of winning the lottery so they only have 5 combinations.
This isn't quite true. Milwaukee has 250 combinations, giving it a 25% chance of winning the lottery. The odds of them winning the second and third pick shift depending on who wins the first pick.
Here are the odds (discounting ties) of a normal draft order:
250 combinations, 25.0% chance of receiving the #1 pick
199 combinations, 19.9% chance
156 combinations, 15.6% chance
119 combinations, 11.9% chance
88 combinations, 8.8% chance
63 combinations, 6.3% chance
43 combinations, 4.3% chance
28 combinations, 2.8% chance
17 combinations, 1.7% chance
11 combinations, 1.1% chance
8 combinations, 0.8% chance
7 combinations, 0.7% chance
6 combinations, 0.6% chance
5 combinations, 0.5% chance