How would you deal with this?

Hey guys I need some help. I have these 6 friends who always begg me to talk to them, and hang with them everyday. The thing is sadly this is too much for me, and I end up kinda ignoring some of them because I'm busy talking to the others. And they get kinda sad. One of my friends even said " sigh I wish you had more time for me these days". And my best friend Jenna who calls me big bro cause she said I'm like a brother to her said " Hey bro how come you take forever to reply to my ims or hang out with others more these days I'm really lonely". And a bunch of my other friends said the same thing. I feel terrible knowing that I don't have time for them. I really wish I could hang with them, but they all want to hang with me everyday at the same time. How do I manage it so noones left out. Please help!