The sum is 144 if 60 is included, 84 if not.
1 and 2.
2 + 3 + 5 = 10
12 x 5 = 60
The prime factors are: 2, 3 and 7. (2+3+7 = 12)
The product of 7 and 60 is 420. The sum of 7 and 60 is 67.
The sum is 144 if 60 is included, 84 if not.
60
The factors of 91 are: 1 7 13 91.The prime factors are: 7 x 13The sum of the prime factors = 7 + 13 = 20
36 and 24
1 and 2.
It's not entirely clear from the wording of your question what it is you want to know. Seven is a one-digit number. The sum of its digits is 7. Seven has two factors: 1 and 7. That sum is 8.
28
The prime factors of 28 are 2 and 7. Their sum is 9.
The odd factors of 70 are: 1, 5, 7, and 35. The sum of these factors is 48.
2 + 3 + 5 = 10
The odd positive integer factors of 70 are: 1 5 7 35 The sum of these factors is 1 + 5 + 7 + 35 = 48