20648656

素因数分解:

$2^4\times 7^1\times {\mathrm{263}}^1\times {\mathrm{701}}^1$

素因数の和:979

約数の個数: 40

約数和(自身を含む): 45961344

約数和(自身を除く): 25312688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 263, 526, 701, 1052, 1402, 1841, 2104, 2804, 3682, 4208, 4907, 5608, 7364, 9814, 11216, 14728, 19628, 29456, 39256, 78512, 184363, 368726, 737452, 1290541, 1474904, 2581082, 2949808, 5162164, 10324328, 20648656]

約数ペア:

[(1, 20648656), (2, 10324328), (4, 5162164), (7, 2949808), (8, 2581082), (14, 1474904), (16, 1290541), (28, 737452), (56, 368726), (112, 184363), (263, 78512), (526, 39256), (701, 29456), (1052, 19628), (1402, 14728), (1841, 11216), (2104, 9814), (2804, 7364), (3682, 5608), (4208, 4907)]