28858000

素因数分解:

$2^4\times 5^3\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:377

約数の個数: 80

約数和(自身を含む): 71495424

約数和(自身を除く): 42637424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 125, 188, 200, 235, 250, 307, 376, 400, 470, 500, 614, 752, 940, 1000, 1175, 1228, 1535, 1880, 2000, 2350, 2456, 3070, 3760, 4700, 4912, 5875, 6140, 7675, 9400, 11750, 12280, 14429, 15350, 18800, 23500, 24560, 28858, 30700, 38375, 47000, 57716, 61400, 72145, 76750, 94000, 115432, 122800, 144290, 153500, 230864, 288580, 307000, 360725, 577160, 614000, 721450, 1154320, 1442900, 1803625, 2885800, 3607250, 5771600, 7214500, 14429000, 28858000]

約数ペア:

[(1, 28858000), (2, 14429000), (4, 7214500), (5, 5771600), (8, 3607250), (10, 2885800), (16, 1803625), (20, 1442900), (25, 1154320), (40, 721450), (47, 614000), (50, 577160), (80, 360725), (94, 307000), (100, 288580), (125, 230864), (188, 153500), (200, 144290), (235, 122800), (250, 115432), (307, 94000), (376, 76750), (400, 72145), (470, 61400), (500, 57716), (614, 47000), (752, 38375), (940, 30700), (1000, 28858), (1175, 24560), (1228, 23500), (1535, 18800), (1880, 15350), (2000, 14429), (2350, 12280), (2456, 11750), (3070, 9400), (3760, 7675), (4700, 6140), (4912, 5875)]