Read More
Date: 25-8-2020
890
Date: 29-12-2020
775
Date: 18-7-2020
2119
|
Two integers and are -multiamicable if
and
where is the divisor function and are positive integers. If , is an amicable pair.
cannot have just one distinct prime factor, and if it has precisely two distinct prime factors, then and is even. Small multiamicable numbers for small are given by Cohen et al. (1995). Several of these numbers are reproduced in the table below.
1 | 6 | 76455288 | 183102192 |
1 | 7 | 52920 | 152280 |
1 | 7 | 16225560 | 40580280 |
1 | 7 | 90863136 | 227249568 |
1 | 7 | 16225560 | 40580280 |
1 | 7 | 70821324288 | 177124806144 |
1 | 7 | 199615613902848 | 499240550375424 |
REFERENCES:
Cohen, G. L; Gretton, S.; and Hagis, P. Jr. "Multiamicable Numbers." Math. Comput. 64, 1743-1753, 1995.ش
|
|
علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
|
|
|
|
|
أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
|
|
|
|
|
مكتبة أمّ البنين النسويّة تصدر العدد 212 من مجلّة رياض الزهراء (عليها السلام)
|
|
|