19907200

素因数分解:

$2^7\times 5^2\times {\mathrm{6221}}^1$

素因数の和:6245

約数の個数: 48

約数和(自身を含む): 49184910

約数和(自身を除く): 29277710

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, 6221, 12442, 24884, 31105, 49768, 62210, 99536, 124420, 155525, 199072, 248840, 311050, 398144, 497680, 622100, 796288, 995360, 1244200, 1990720, 2488400, 3981440, 4976800, 9953600, 19907200]

約数ペア:

[(1, 19907200), (2, 9953600), (4, 4976800), (5, 3981440), (8, 2488400), (10, 1990720), (16, 1244200), (20, 995360), (25, 796288), (32, 622100), (40, 497680), (50, 398144), (64, 311050), (80, 248840), (100, 199072), (128, 155525), (160, 124420), (200, 99536), (320, 62210), (400, 49768), (640, 31105), (800, 24884), (1600, 12442), (3200, 6221)]