19721200

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1049}}^1$

素因数の和:1114

約数の個数: 60

約数和(自身を含む): 48434400

約数和(自身を除く): 28713200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1049, 1175, 1880, 2098, 2350, 3760, 4196, 4700, 5245, 8392, 9400, 10490, 16784, 18800, 20980, 26225, 41960, 49303, 52450, 83920, 98606, 104900, 197212, 209800, 246515, 394424, 419600, 493030, 788848, 986060, 1232575, 1972120, 2465150, 3944240, 4930300, 9860600, 19721200]

約数ペア:

[(1, 19721200), (2, 9860600), (4, 4930300), (5, 3944240), (8, 2465150), (10, 1972120), (16, 1232575), (20, 986060), (25, 788848), (40, 493030), (47, 419600), (50, 394424), (80, 246515), (94, 209800), (100, 197212), (188, 104900), (200, 98606), (235, 83920), (376, 52450), (400, 49303), (470, 41960), (752, 26225), (940, 20980), (1049, 18800), (1175, 16784), (1880, 10490), (2098, 9400), (2350, 8392), (3760, 5245), (4196, 4700)]