A 1480 is solidly in range for those schools, though I get why you're feeling the pressure. The thing is, those top schools get plenty of applications from people with 1500+ scores and still reject them. Your score isn't the barrier - it's just one part of a much bigger picture. Admissions officers care about your essays, extracurriculars, grades, and what you bring to campus. A 20-point bump might feel significant on paper, but it won't suddenly transform your application if other parts are weak, and it won't hurt you if they're strong.
That said, whether to retake depends on how confident you are in your other materials. If you're worried your GPA is lower than you'd like or your essays need work, spending November on SAT prep instead of perfecting those areas might not be the best use of your time. The November test also cuts things close since applications go out in early November anyway at most schools. If you do retake and do worse, you'd have that lower score on your record too.
I'd honestly ask yourself this: is a 1480 the thing that's making you nervous about your application, or is it something else? If your transcript, essays, and activities feel solid, you're probably fine as-is. If you genuinely feel like you could squeeze out 50+ points without major stress and have time before you send things, retaking makes sense. But don't do it just because your friends had higher scores.