19203500

素因数分解:

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

素因数の和:411

約数の個数: 48

約数和(自身を含む): 42369600

約数和(自身を除く): 23166100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 193, 199, 250, 386, 398, 500, 772, 796, 965, 995, 1930, 1990, 3860, 3980, 4825, 4975, 9650, 9950, 19300, 19900, 24125, 24875, 38407, 48250, 49750, 76814, 96500, 99500, 153628, 192035, 384070, 768140, 960175, 1920350, 3840700, 4800875, 9601750, 19203500]

約数ペア:

[(1, 19203500), (2, 9601750), (4, 4800875), (5, 3840700), (10, 1920350), (20, 960175), (25, 768140), (50, 384070), (100, 192035), (125, 153628), (193, 99500), (199, 96500), (250, 76814), (386, 49750), (398, 48250), (500, 38407), (772, 24875), (796, 24125), (965, 19900), (995, 19300), (1930, 9950), (1990, 9650), (3860, 4975), (3980, 4825)]