122617420

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{15443}}^1$

素因数の和:15849

約数の個数: 24

約数和(自身を含む): 258161904

約数和(自身を除く): 135544484

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 15443, 30886, 61772, 77215, 154430, 308860, 6130871, 12261742, 24523484, 30654355, 61308710, 122617420]

約数ペア:

[(1, 122617420), (2, 61308710), (4, 30654355), (5, 24523484), (10, 12261742), (20, 6130871), (397, 308860), (794, 154430), (1588, 77215), (1985, 61772), (3970, 30886), (7940, 15443)]