68519780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{489427}}^1$

素因数の和:489443

約数の個数: 24

約数和(自身を含む): 164447808

約数和(自身を除く): 95928028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 489427, 978854, 1957708, 2447135, 3425989, 4894270, 6851978, 9788540, 13703956, 17129945, 34259890, 68519780]

約数ペア:

[(1, 68519780), (2, 34259890), (4, 17129945), (5, 13703956), (7, 9788540), (10, 6851978), (14, 4894270), (20, 3425989), (28, 2447135), (35, 1957708), (70, 978854), (140, 489427)]