





def 							SCREAMING_SNAKE_CASE__						(    __a   ):
 if not isinstance(__a   , __a   ):
  raise ValueError('Input must be an integer'   )
 if input_num <= 0:
  raise ValueError('Input must be positive'   )
 return sum(
     divisor for divisor in range(1   , input_num // 2 + 1   ) if input_num % divisor == 0   )


if __name__ == "__main__":
      import doctest

      doctest.testmod()








import numpy as np


def 							SCREAMING_SNAKE_CASE__						(    __a   ):
	return (2 / (1 + np.exp(-2 * vector   ))) - 1


if __name__ == "__main__":
						import doctest

						doctest.testmod()

