8045952080

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{505399}}^1$

素因数の和:505611

約数の個数: 40

約数和(自身を含む): 18800880000

約数和(自身を除く): 10754927920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 15920, 505399, 1010798, 2021596, 2526995, 4043192, 5053990, 8086384, 10107980, 20215960, 40431920, 100574401, 201148802, 402297604, 502872005, 804595208, 1005744010, 1609190416, 2011488020, 4022976040, 8045952080]

約数ペア:

[(1, 8045952080), (2, 4022976040), (4, 2011488020), (5, 1609190416), (8, 1005744010), (10, 804595208), (16, 502872005), (20, 402297604), (40, 201148802), (80, 100574401), (199, 40431920), (398, 20215960), (796, 10107980), (995, 8086384), (1592, 5053990), (1990, 4043192), (3184, 2526995), (3980, 2021596), (7960, 1010798), (15920, 505399)]