20181281512

素因数分解:

$2^3\times 7^2\times {\mathrm{251}}^1\times {\mathrm{205111}}^1$

素因数の和:205382

約数の個数: 48

約数和(自身を含む): 44193431520

約数和(自身を除く): 24012150008

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 251, 392, 502, 1004, 1757, 2008, 3514, 7028, 12299, 14056, 24598, 49196, 98392, 205111, 410222, 820444, 1435777, 1640888, 2871554, 5743108, 10050439, 11486216, 20100878, 40201756, 51482861, 80403512, 102965722, 205931444, 360380027, 411862888, 720760054, 1441520108, 2522660189, 2883040216, 5045320378, 10090640756, 20181281512]

約数ペア:

[(1, 20181281512), (2, 10090640756), (4, 5045320378), (7, 2883040216), (8, 2522660189), (14, 1441520108), (28, 720760054), (49, 411862888), (56, 360380027), (98, 205931444), (196, 102965722), (251, 80403512), (392, 51482861), (502, 40201756), (1004, 20100878), (1757, 11486216), (2008, 10050439), (3514, 5743108), (7028, 2871554), (12299, 1640888), (14056, 1435777), (24598, 820444), (49196, 410222), (98392, 205111)]