Amicable Numbers Calculator
Posted by Dinesh onCalculate amicable numbers (sum of all their divisors is equal to the other number), pair sum using amicable number calculator online.
What is Amicable Numbers?
Amicable numbers are two different numbers a and b so related that the sum of the proper divisors of a is equal to the proper divisors of b. A proper divisor of a number is a positive integer divisor other than the number itself. For example, the proper divisor of 88 are 7 dividers (1,2,4,8,11,22 and 92). Note: 88 is not included in the list although it is a divisor of 88.
List of amicable numbers from 1 to 200,000
| a | b |
|---|---|
| 220 | 284 |
| 1,184 | 1,210 |
| 2,620 | 2,924 |
| 5,020 | 5,564 |
| 6,232 | 6,368 |
| 10,744 | 10,856 |
| 12,285 | 14,595 |
| 17,296 | 18,416 |
| 63,020 | 76,084 |
| 66,928 | 66,992 |
| 67,095 | 71,145 |
| 69,615 | 87,633 |
| 79,750 | 88,730 |
| 100,485 | 124,155 |
| 122,265 | 139,815 |
| 122,368 | 123,152 |
| 141,664 | 153,176 |
| 142,310 | 168,730 |
| 171,856 | 176,336 |
| 176,272 | 180,848 |
Amicable Numbers, Pair Sum Calculation
Formula:
Amicable = s(m) = n ; s(n) = m
Amicable Pair = σ(n) = σ(m) = s(m)+s(n)
s(n)= σ(n) - n
s(m)= σ(m) - m