leetcode-problemset/leetcode-cn/originData/perfect-number.json

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            "categoryTitle": "Algorithms",
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            "title": "Perfect Number",
            "titleSlug": "perfect-number",
            "content": "<p>A <a href=\"https://en.wikipedia.org/wiki/Perfect_number\" target=\"_blank\"><strong>perfect number</strong></a> is a <strong>positive integer</strong> that is equal to the sum of its <strong>positive divisors</strong>, excluding the number itself. A <strong>divisor</strong> of an integer <code>x</code> is an integer that can divide <code>x</code> evenly.</p>\n\n<p>Given an integer <code>n</code>, return <code>true</code><em> if </em><code>n</code><em> is a perfect number, otherwise return </em><code>false</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 28\n<strong>Output:</strong> true\n<strong>Explanation:</strong> 28 = 1 + 2 + 4 + 7 + 14\n1, 2, 4, 7, and 14 are all divisors of 28.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 7\n<strong>Output:</strong> false\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= num &lt;= 10<sup>8</sup></code></li>\n</ul>\n",
            "translatedTitle": "完美数",
            "translatedContent": "<p>对于一个&nbsp;<strong>正整数</strong>，如果它和除了它自身以外的所有 <strong>正因子</strong> 之和相等，我们称它为 <strong>「完美数」</strong>。</p>\n\n<p>给定一个&nbsp;<strong>整数&nbsp;</strong><code>n</code>，&nbsp;如果是完美数，返回 <code>true</code>；否则返回 <code>false</code>。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = 28\n<strong>输出：</strong>true\n<strong>解释：</strong>28 = 1 + 2 + 4 + 7 + 14\n1, 2, 4, 7, 和 14 是 28 的所有正因子。</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>num = 7\n<strong>输出：</strong>false\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= num &lt;= 10<sup>8</sup></code></li>\n</ul>\n",
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