1980 (number)
1980 is the natural number following 1979 and preceding 1981.
Mathematics
1980 is a pronic number, a highly abundant number, an e-perfect number and a coreful perfect number. Not only is it highly abundant, but it also has a greater aliquot sum than any smaller number.1980 is the fourth number with 36 divisors. It forms an amicable triple with 2016 and 2556, since σ = σ = σ and 6552 = 1980 + 2016 + 2556.