428800

素因数分解:

$2^8\times 5^2\times {\mathrm{67}}^1$

素因数の和:93

約数の個数: 54

約数和(自身を含む): 1077188

約数和(自身を除く): 648388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 67, 80, 100, 128, 134, 160, 200, 256, 268, 320, 335, 400, 536, 640, 670, 800, 1072, 1280, 1340, 1600, 1675, 2144, 2680, 3200, 3350, 4288, 5360, 6400, 6700, 8576, 10720, 13400, 17152, 21440, 26800, 42880, 53600, 85760, 107200, 214400, 428800]

約数ペア:

[(1, 428800), (2, 214400), (4, 107200), (5, 85760), (8, 53600), (10, 42880), (16, 26800), (20, 21440), (25, 17152), (32, 13400), (40, 10720), (50, 8576), (64, 6700), (67, 6400), (80, 5360), (100, 4288), (128, 3350), (134, 3200), (160, 2680), (200, 2144), (256, 1675), (268, 1600), (320, 1340), (335, 1280), (400, 1072), (536, 800), (640, 670)]