Find the mean of all factors of 10.

Explanation

To find the mean of all factors of 10, we can follow these steps:

### Step 1: Identify the factors of 10
The factors of a number are the integers that can be multiplied together to get that number. For 10, we can find the factors by checking which numbers divide 10 without leaving a remainder.

- The factors of 10 are: 1, 2, 5, and 10.

### Step 2: Add the factors together
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