80804390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113809}}^1$

素因数の和:113887

約数の個数: 16

約数和(自身を含む): 147497760

約数和(自身を除く): 66693370

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 113809, 227618, 569045, 1138090, 8080439, 16160878, 40402195, 80804390]

約数ペア:

[(1, 80804390), (2, 40402195), (5, 16160878), (10, 8080439), (71, 1138090), (142, 569045), (355, 227618), (710, 113809)]