1393000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{199}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 3744000

約数和(自身を除く): 2351000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 199, 200, 250, 280, 350, 398, 500, 700, 796, 875, 995, 1000, 1393, 1400, 1592, 1750, 1990, 2786, 3500, 3980, 4975, 5572, 6965, 7000, 7960, 9950, 11144, 13930, 19900, 24875, 27860, 34825, 39800, 49750, 55720, 69650, 99500, 139300, 174125, 199000, 278600, 348250, 696500, 1393000]

約数ペア:

[(1, 1393000), (2, 696500), (4, 348250), (5, 278600), (7, 199000), (8, 174125), (10, 139300), (14, 99500), (20, 69650), (25, 55720), (28, 49750), (35, 39800), (40, 34825), (50, 27860), (56, 24875), (70, 19900), (100, 13930), (125, 11144), (140, 9950), (175, 7960), (199, 7000), (200, 6965), (250, 5572), (280, 4975), (350, 3980), (398, 3500), (500, 2786), (700, 1990), (796, 1750), (875, 1592), (995, 1400), (1000, 1393)]