28811320

素因数分解:

$2^3\times 5^1\times {\mathrm{720283}}^1$

素因数の和:720294

約数の個数: 16

約数和(自身を含む): 64825560

約数和(自身を除く): 36014240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 720283, 1440566, 2881132, 3601415, 5762264, 7202830, 14405660, 28811320]

約数ペア:

[(1, 28811320), (2, 14405660), (4, 7202830), (5, 5762264), (8, 3601415), (10, 2881132), (20, 1440566), (40, 720283)]