[рони]

Sasha12312321,

<script>
let number = prompt("Введите число!");
if (!number || typeof +number !== "number" || isNaN(+number)) {
    alert("Sorry, no numbers");
} else
    for (let i = 0; i <= +number; ++i) {
        if (i % i === 0) {
            if (i % 5 == 0) {
                document.write(`${i}<br>`);
            }
        }
    }
    </script>