3981440

素因数分解:

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

素因数の和:6240

約数の個数: 32

約数和(自身を含む): 9519660

約数和(自身を除く): 5538220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6221, 12442, 24884, 31105, 49768, 62210, 99536, 124420, 199072, 248840, 398144, 497680, 796288, 995360, 1990720, 3981440]

約数ペア:

[(1, 3981440), (2, 1990720), (4, 995360), (5, 796288), (8, 497680), (10, 398144), (16, 248840), (20, 199072), (32, 124420), (40, 99536), (64, 62210), (80, 49768), (128, 31105), (160, 24884), (320, 12442), (640, 6221)]