20180992816

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{649157}}^1$

素因数の和:649261

約数の個数: 40

約数和(自身を含む): 41052751920

約数和(自身を除く): 20871759104

約数列:

[1, 2, 4, 8, 16, 29, 58, 67, 116, 134, 232, 268, 464, 536, 1072, 1943, 3886, 7772, 15544, 31088, 649157, 1298314, 2596628, 5193256, 10386512, 18825553, 37651106, 43493519, 75302212, 86987038, 150604424, 173974076, 301208848, 347948152, 695896304, 1261312051, 2522624102, 5045248204, 10090496408, 20180992816]

約数ペア:

[(1, 20180992816), (2, 10090496408), (4, 5045248204), (8, 2522624102), (16, 1261312051), (29, 695896304), (58, 347948152), (67, 301208848), (116, 173974076), (134, 150604424), (232, 86987038), (268, 75302212), (464, 43493519), (536, 37651106), (1072, 18825553), (1943, 10386512), (3886, 5193256), (7772, 2596628), (15544, 1298314), (31088, 649157)]