64428800

素因数分解:

$2^8\times 5^2\times {\mathrm{10067}}^1$

素因数の和:10093

約数の個数: 54

約数和(自身を含む): 159487188

約数和(自身を除く): 95058388

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, 10067, 20134, 40268, 50335, 80536, 100670, 161072, 201340, 251675, 322144, 402680, 503350, 644288, 805360, 1006700, 1288576, 1610720, 2013400, 2577152, 3221440, 4026800, 6442880, 8053600, 12885760, 16107200, 32214400, 64428800]

約数ペア:

[(1, 64428800), (2, 32214400), (4, 16107200), (5, 12885760), (8, 8053600), (10, 6442880), (16, 4026800), (20, 3221440), (25, 2577152), (32, 2013400), (40, 1610720), (50, 1288576), (64, 1006700), (80, 805360), (100, 644288), (128, 503350), (160, 402680), (200, 322144), (256, 251675), (320, 201340), (400, 161072), (640, 100670), (800, 80536), (1280, 50335), (1600, 40268), (3200, 20134), (6400, 10067)]