67628800

素因数分解:

$2^8\times 5^2\times {\mathrm{10567}}^1$

素因数の和:10593

約数の個数: 54

約数和(自身を含む): 167407688

約数和(自身を除く): 99778888

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, 10567, 21134, 42268, 52835, 84536, 105670, 169072, 211340, 264175, 338144, 422680, 528350, 676288, 845360, 1056700, 1352576, 1690720, 2113400, 2705152, 3381440, 4226800, 6762880, 8453600, 13525760, 16907200, 33814400, 67628800]

約数ペア:

[(1, 67628800), (2, 33814400), (4, 16907200), (5, 13525760), (8, 8453600), (10, 6762880), (16, 4226800), (20, 3381440), (25, 2705152), (32, 2113400), (40, 1690720), (50, 1352576), (64, 1056700), (80, 845360), (100, 676288), (128, 528350), (160, 422680), (200, 338144), (256, 264175), (320, 211340), (400, 169072), (640, 105670), (800, 84536), (1280, 52835), (1600, 42268), (3200, 21134), (6400, 10567)]