const readline = require('readline'); const rl = readline.createInterface({ input:process.stdin, output:process.stdout }); const getCompleteNum = (max) =>{ let arr=[]; for(let i=1;i<=max;i++){ let h=0; for(let d=1;d<i;d++){ if(i%d===0){ h+=d; } } if(h===i){ arr.push(i); } } return arr.length; } rl.on('line',(line)=>{ console.log(getCompleteNum(line)) })