8142340

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{919}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 17156160

約数和(自身を除く): 9013820

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 919, 1772, 1838, 2215, 3676, 4430, 4595, 8860, 9190, 18380, 407117, 814234, 1628468, 2035585, 4071170, 8142340]

約数ペア:

[(1, 8142340), (2, 4071170), (4, 2035585), (5, 1628468), (10, 814234), (20, 407117), (443, 18380), (886, 9190), (919, 8860), (1772, 4595), (1838, 4430), (2215, 3676)]