#![allow(unused_parens)]
#![allow(unused_imports)]
#![allow(non_upper_case_globals)]
#![allow(non_snake_case)]
#![allow(unused_mut)]
#![allow(unused_variables)]
#![allow(dead_code)]

use itertools::Itertools;
use proconio::input;
use proconio::marker::{Chars, Usize1};

#[allow(unused_macros)]
#[cfg(debug_assertions)]
macro_rules! mydbg {
    //($arg:expr) => (dbg!($arg))
    //($arg:expr) => (println!("{:?}",$arg));
      ($($a:expr),*) => {
          eprintln!(concat!($(stringify!($a), " = {:?}, "),*), $($a),*);
      }
}
#[cfg(not(debug_assertions))]
macro_rules! mydbg {
    ($($arg:expr),*) => {};
}

macro_rules! echo {
    ($($a:expr),*) => {
          $(println!("{}",$a))*
      }
}

use std::cmp::*;
use std::collections::*;
use std::ops::{Add, Div, Mul, Sub};

#[allow(dead_code)]
static INF_I64: i64 = 92233720368547758;
#[allow(dead_code)]
static INF_I32: i32 = 21474836;
#[allow(dead_code)]
static INF_USIZE: usize = 18446744073709551;
#[allow(dead_code)]
static M_O_D: usize = 1000000007;
#[allow(dead_code)]
static PAI: f64 = 3.1415926535897932;

trait IteratorExt: Iterator {
    fn toVec(self) -> Vec<Self::Item>;
}

impl<T: Iterator> IteratorExt for T {
    fn toVec(self) -> Vec<Self::Item> {
        self.collect()
    }
}

trait CharExt {
    fn toNum(&self) -> usize;
    fn toAlphabetIndex(&self) -> usize;
    fn toNumIndex(&self) -> usize;
}
impl CharExt for char {
    fn toNum(&self) -> usize {
        return *self as usize;
    }
    fn toAlphabetIndex(&self) -> usize {
        return self.toNum() - 'a' as usize;
    }
    fn toNumIndex(&self) -> usize {
        return self.toNum() - '0' as usize;
    }
}

trait VectorExt {
    fn joinToString(&self, s: &str) -> String;
}
impl<T: ToString> VectorExt for Vec<T> {
    fn joinToString(&self, s: &str) -> String {
        return self
            .iter()
            .map(|x| x.to_string())
            .collect::<Vec<_>>()
            .join(s);
    }
}

trait StringExt {
    fn get_reverse(&self) -> String;
}
impl StringExt for String {
    fn get_reverse(&self) -> String {
        self.chars().rev().collect::<String>()
    }
}

trait UsizeExt {
    fn pow(&self, n: usize) -> usize;
}
impl UsizeExt for usize {
    fn pow(&self, n: usize) -> usize {
        return ((*self as u64).pow(n as u32)) as usize;
    }
}

#[derive(Debug)]
pub struct PrimeFactor {
    base: u64,
    exp: u64,
}
impl PrimeFactor {
    fn new(base: u64, exp: u64) -> PrimeFactor {
        PrimeFactor {
            base: base,
            exp: exp,
        }
    }
}
impl PartialEq for PrimeFactor {
    fn eq(&self, target: &Self) -> bool {
        self.base == target.base && self.exp == target.exp
    }
}
impl Eq for PrimeFactor {}
fn factraize(n: u64) -> Vec<PrimeFactor> {
    let mut tmp = n;
    let mut b = 1;
    let mut res = vec![];
    let mut count = 0;
    loop {
        b += 1;
        if (b * b > n) {
            break;
        };
        if (tmp % b == 0) {
            let mut e = 0;
            for i in 1.. {
                e = i;
                tmp = tmp / b;
                if (tmp % b != 0) {
                    break;
                };
            }
            res.push(PrimeFactor::new(b, e));
        }
    }
    if (tmp != 1) {
        res.push(PrimeFactor::new(tmp, 1));
    }
    return res;
}

fn main() {
    input! {
       N: u64,
    }

    let mut primes = factraize(N);
    let mut ans: usize = 0;
    for item in &primes {
        let mut a = 0;
        let mut b = item.exp;
        for i in 1.. {
            if b >= i {
                b -= i as u64;
                a += 1;
            } else {
                break;
            }
        }
        ans += a;
    }

    echo!(ans);
}


Measured memory_bytes: 2132