2149502480

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{135019}}^1$

素因数の和:135231

約数の個数: 40

約数和(自身を含む): 5022744000

約数和(自身を除く): 2873241520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 135019, 270038, 540076, 675095, 1080152, 1350190, 2160304, 2700380, 5400760, 10801520, 26868781, 53737562, 107475124, 134343905, 214950248, 268687810, 429900496, 537375620, 1074751240, 2149502480]

約数ペア:

[(1, 2149502480), (2, 1074751240), (4, 537375620), (5, 429900496), (8, 268687810), (10, 214950248), (16, 134343905), (20, 107475124), (40, 53737562), (80, 26868781), (199, 10801520), (398, 5400760), (796, 2700380), (995, 2160304), (1592, 1350190), (1990, 1080152), (3184, 675095), (3980, 540076), (7960, 270038), (15920, 135019)]