import           Data.List (group)

primes :: Integral a => [a]
primes = map fromIntegral primes'
    where
        primes' = [2, 3, 5] ++ sieve 5 7 (drop 2 primes')
        sieve m s (p : ps) = [n | n <- ns, gcd m n == 1] ++ sieve (m * p) (p * p) ps
            where ns = [x + y | x <- [s, s + 6 .. p * p - 2], y <- [0, 4]]

factorize :: Integral a => a -> [a]
factorize 1 = []
factorize n = factorize' n primes
    where
        factorize' n ps@(p : pr)
            | p * p > n    = [n]
            | m == 0       = p : factorize' d ps
            | otherwise    = factorize' n pr
            where (d, m) = divMod n p

getY :: Integer -> Integer
getY x = y
    where
        factors = map (\ps -> (head ps, fromIntegral $ length ps)) $ group $ factorize x
        y = product $ map (\(f, k) -> if odd k then f else 1) factors

main :: IO ()
main = print . getY =<< readLn