19628800

素因数分解:

$2^8\times 5^2\times {\mathrm{3067}}^1$

素因数の和:3093

約数の個数: 54

約数和(自身を含む): 48600188

約数和(自身を除く): 28971388

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, 3067, 3200, 6134, 6400, 12268, 15335, 24536, 30670, 49072, 61340, 76675, 98144, 122680, 153350, 196288, 245360, 306700, 392576, 490720, 613400, 785152, 981440, 1226800, 1962880, 2453600, 3925760, 4907200, 9814400, 19628800]

約数ペア:

[(1, 19628800), (2, 9814400), (4, 4907200), (5, 3925760), (8, 2453600), (10, 1962880), (16, 1226800), (20, 981440), (25, 785152), (32, 613400), (40, 490720), (50, 392576), (64, 306700), (80, 245360), (100, 196288), (128, 153350), (160, 122680), (200, 98144), (256, 76675), (320, 61340), (400, 49072), (640, 30670), (800, 24536), (1280, 15335), (1600, 12268), (3067, 6400), (3200, 6134)]