7681400

素因数分解:

$2^3\times 5^2\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 18042000

約数和(自身を除く): 10360600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 193, 199, 200, 386, 398, 772, 796, 965, 995, 1544, 1592, 1930, 1990, 3860, 3980, 4825, 4975, 7720, 7960, 9650, 9950, 19300, 19900, 38407, 38600, 39800, 76814, 153628, 192035, 307256, 384070, 768140, 960175, 1536280, 1920350, 3840700, 7681400]

約数ペア:

[(1, 7681400), (2, 3840700), (4, 1920350), (5, 1536280), (8, 960175), (10, 768140), (20, 384070), (25, 307256), (40, 192035), (50, 153628), (100, 76814), (193, 39800), (199, 38600), (200, 38407), (386, 19900), (398, 19300), (772, 9950), (796, 9650), (965, 7960), (995, 7720), (1544, 4975), (1592, 4825), (1930, 3980), (1990, 3860)]