6487400

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 15252000

約数和(自身を除く): 8764600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 199, 200, 326, 398, 652, 796, 815, 995, 1304, 1592, 1630, 1990, 3260, 3980, 4075, 4975, 6520, 7960, 8150, 9950, 16300, 19900, 32437, 32600, 39800, 64874, 129748, 162185, 259496, 324370, 648740, 810925, 1297480, 1621850, 3243700, 6487400]

約数ペア:

[(1, 6487400), (2, 3243700), (4, 1621850), (5, 1297480), (8, 810925), (10, 648740), (20, 324370), (25, 259496), (40, 162185), (50, 129748), (100, 64874), (163, 39800), (199, 32600), (200, 32437), (326, 19900), (398, 16300), (652, 9950), (796, 8150), (815, 7960), (995, 6520), (1304, 4975), (1592, 4075), (1630, 3980), (1990, 3260)]