25628800

素因数分解:

$2^7\times 5^2\times {\mathrm{8009}}^1$

素因数の和:8033

約数の個数: 48

約数和(自身を含む): 63319050

約数和(自身を除く): 37690250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 8009, 16018, 32036, 40045, 64072, 80090, 128144, 160180, 200225, 256288, 320360, 400450, 512576, 640720, 800900, 1025152, 1281440, 1601800, 2562880, 3203600, 5125760, 6407200, 12814400, 25628800]

約数ペア:

[(1, 25628800), (2, 12814400), (4, 6407200), (5, 5125760), (8, 3203600), (10, 2562880), (16, 1601800), (20, 1281440), (25, 1025152), (32, 800900), (40, 640720), (50, 512576), (64, 400450), (80, 320360), (100, 256288), (128, 200225), (160, 160180), (200, 128144), (320, 80090), (400, 64072), (640, 40045), (800, 32036), (1600, 16018), (3200, 8009)]