2028800

素因数分解:

$2^8\times 5^2\times {\mathrm{317}}^1$

素因数の和:343

約数の個数: 54

約数和(自身を含む): 5037438

約数和(自身を除く): 3008638

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 317, 320, 400, 634, 640, 800, 1268, 1280, 1585, 1600, 2536, 3170, 3200, 5072, 6340, 6400, 7925, 10144, 12680, 15850, 20288, 25360, 31700, 40576, 50720, 63400, 81152, 101440, 126800, 202880, 253600, 405760, 507200, 1014400, 2028800]

約数ペア:

[(1, 2028800), (2, 1014400), (4, 507200), (5, 405760), (8, 253600), (10, 202880), (16, 126800), (20, 101440), (25, 81152), (32, 63400), (40, 50720), (50, 40576), (64, 31700), (80, 25360), (100, 20288), (128, 15850), (160, 12680), (200, 10144), (256, 7925), (317, 6400), (320, 6340), (400, 5072), (634, 3200), (640, 3170), (800, 2536), (1268, 1600), (1280, 1585)]