27780400

素因数分解:

$2^4\times 5^2\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:566

約数の個数: 60

約数和(自身を含む): 67270000

約数和(自身を除く): 39489600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 199, 200, 349, 398, 400, 698, 796, 995, 1396, 1592, 1745, 1990, 2792, 3184, 3490, 3980, 4975, 5584, 6980, 7960, 8725, 9950, 13960, 15920, 17450, 19900, 27920, 34900, 39800, 69451, 69800, 79600, 138902, 139600, 277804, 347255, 555608, 694510, 1111216, 1389020, 1736275, 2778040, 3472550, 5556080, 6945100, 13890200, 27780400]

約数ペア:

[(1, 27780400), (2, 13890200), (4, 6945100), (5, 5556080), (8, 3472550), (10, 2778040), (16, 1736275), (20, 1389020), (25, 1111216), (40, 694510), (50, 555608), (80, 347255), (100, 277804), (199, 139600), (200, 138902), (349, 79600), (398, 69800), (400, 69451), (698, 39800), (796, 34900), (995, 27920), (1396, 19900), (1592, 17450), (1745, 15920), (1990, 13960), (2792, 9950), (3184, 8725), (3490, 7960), (3980, 6980), (4975, 5584)]