ADDITION TO 'AN UPPER BOUND FOR THE NUMBER OF ODD MULTIPERFECT NUMBERS'

作者：Yuan, Pingzhi^*; Zhang, Zhongfeng

来源：Bulletin of the Australian Mathematical Society, 2014, 89(1): 5-7.

DOI：10.1017/S0004972713000452

• odd perfect numbers
• k-perfect numbers

The main result in the earlier paper (by the first author) is improved as follows. The number of odd multiperfect numbers with at most r distinct prime factors is bounded by 4(r2)/2(r+2)(r - 1)!.

• 出版日期2014-2
• 单位肇庆学院; 华南师范大学