Twitter API：排名前10的粉丝，根据他们的数量而定？

I'm building a posting system where in the view page I get the poster top 5 followers names based on their number of followers.

Mike Posted a topic   --------> Mike's Top 10 Followers
                                  1- Follower1 ---> his followers 100k
                                  2- Follower2 ---> his followers 80k
                                  3- Follower3 ---> his followers 50k

I hope you got the idea.

My question, what would be the best approach to add this feature in the system? Twitter API does not offer a Top 5 or Top 10 Followers. All I can think of right now, is looping through Mike's followers ids using followers/ids but this is too much! or maybe store them in a table ? also I think it's too much.

I hope I can get some elegant solutions from you guys!

Thanks