123025780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{30911}}^1$

素因数の和:31119

約数の個数: 24

約数和(自身を含む): 259660800

約数和(自身を除く): 136635020

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 30911, 61822, 123644, 154555, 309110, 618220, 6151289, 12302578, 24605156, 30756445, 61512890, 123025780]

約数ペア:

[(1, 123025780), (2, 61512890), (4, 30756445), (5, 24605156), (10, 12302578), (20, 6151289), (199, 618220), (398, 309110), (796, 154555), (995, 123644), (1990, 61822), (3980, 30911)]