20340292

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:836

約数の個数: 36

約数和(自身を含む): 41733804

約数和(自身を除く): 21393512

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 661, 1099, 1322, 2198, 2644, 4396, 4627, 7693, 9254, 15386, 18508, 30772, 32389, 64778, 103777, 129556, 207554, 415108, 726439, 1452878, 2905756, 5085073, 10170146, 20340292]

約数ペア:

[(1, 20340292), (2, 10170146), (4, 5085073), (7, 2905756), (14, 1452878), (28, 726439), (49, 415108), (98, 207554), (157, 129556), (196, 103777), (314, 64778), (628, 32389), (661, 30772), (1099, 18508), (1322, 15386), (2198, 9254), (2644, 7693), (4396, 4627)]