def calc(N):
    ans=0
    for i in range(1,int(N**0.5)+1):
        if N%i==0:ans+=1
    ans*=2
    if int(N**0.5)==N**0.5:ans-=1
    print(ans)

def main():
    calc(int(input()))

if __name__ == '__main__':
    main()