79210291240

素因数分解:

$2^3\times 5^1\times {\mathrm{1980257281}}^1$

素因数の和:1980257292

約数の個数: 16

約数和(自身を含む): 178223155380

約数和(自身を除く): 99012864140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1980257281, 3960514562, 7921029124, 9901286405, 15842058248, 19802572810, 39605145620, 79210291240]

約数ペア:

[(1, 79210291240), (2, 39605145620), (4, 19802572810), (5, 15842058248), (8, 9901286405), (10, 7921029124), (20, 3960514562), (40, 1980257281)]