1997369600

素因数分解:

$2^8\times 5^2\times {\mathrm{312089}}^1$

素因数の和:312115

約数の個数: 54

約数和(自身を含む): 4943817690

約数和(自身を除く): 2946448090

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 312089, 624178, 1248356, 1560445, 2496712, 3120890, 4993424, 6241780, 7802225, 9986848, 12483560, 15604450, 19973696, 24967120, 31208900, 39947392, 49934240, 62417800, 79894784, 99868480, 124835600, 199736960, 249671200, 399473920, 499342400, 998684800, 1997369600]

約数ペア:

[(1, 1997369600), (2, 998684800), (4, 499342400), (5, 399473920), (8, 249671200), (10, 199736960), (16, 124835600), (20, 99868480), (25, 79894784), (32, 62417800), (40, 49934240), (50, 39947392), (64, 31208900), (80, 24967120), (100, 19973696), (128, 15604450), (160, 12483560), (200, 9986848), (256, 7802225), (320, 6241780), (400, 4993424), (640, 3120890), (800, 2496712), (1280, 1560445), (1600, 1248356), (3200, 624178), (6400, 312089)]