1, 2, 3, 4, 6 and 8
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There are a few numbers that are less than 19 and have more than 4 factors. The number 10 is less than 19 and has more than four factors.
Because it is divisible by the prime number 2, which is less than 10.
2 and 7 are prime numbers less than 10 that are factors of 42 and 70.
They are: 6, 8, 10 and 15 all of which have 4 factors
Ten is not abundant because the sum of its proper factors is less than itself.