20380745

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52937}}^1$

素因数の和:52960

約数の個数: 16

約数和(自身を含む): 30492288

約数和(自身を除く): 10111543

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 52937, 264685, 370559, 582307, 1852795, 2911535, 4076149, 20380745]

約数ペア:

[(1, 20380745), (5, 4076149), (7, 2911535), (11, 1852795), (35, 582307), (55, 370559), (77, 264685), (385, 52937)]