68804555420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{80005297}}^1$

素因数の和:80005349

約数の個数: 24

約数和(自身を含む): 147849790704

約数和(自身を除く): 79045235284

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 80005297, 160010594, 320021188, 400026485, 800052970, 1600105940, 3440227771, 6880455542, 13760911084, 17201138855, 34402277710, 68804555420]

約数ペア:

[(1, 68804555420), (2, 34402277710), (4, 17201138855), (5, 13760911084), (10, 6880455542), (20, 3440227771), (43, 1600105940), (86, 800052970), (172, 400026485), (215, 320021188), (430, 160010594), (860, 80005297)]