20480416

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{701}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 44579808

約数和(自身を除く): 24099392

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 83, 88, 166, 176, 332, 352, 664, 701, 913, 1328, 1402, 1826, 2656, 2804, 3652, 5608, 7304, 7711, 11216, 14608, 15422, 22432, 29216, 30844, 58183, 61688, 116366, 123376, 232732, 246752, 465464, 640013, 930928, 1280026, 1861856, 2560052, 5120104, 10240208, 20480416]

約数ペア:

[(1, 20480416), (2, 10240208), (4, 5120104), (8, 2560052), (11, 1861856), (16, 1280026), (22, 930928), (32, 640013), (44, 465464), (83, 246752), (88, 232732), (166, 123376), (176, 116366), (332, 61688), (352, 58183), (664, 30844), (701, 29216), (913, 22432), (1328, 15422), (1402, 14608), (1826, 11216), (2656, 7711), (2804, 7304), (3652, 5608)]