20548528

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1283}}^1$

素因数の和:1322

約数の個数: 80

約数和(自身を含む): 53496576

約数和(自身を除く): 32948048

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1283, 1456, 2002, 2288, 2566, 4004, 5132, 8008, 8981, 10264, 14113, 16016, 16679, 17962, 20528, 28226, 33358, 35924, 56452, 66716, 71848, 98791, 112904, 116753, 133432, 143696, 183469, 197582, 225808, 233506, 266864, 366938, 395164, 467012, 733876, 790328, 934024, 1284283, 1467752, 1580656, 1868048, 2568566, 2935504, 5137132, 10274264, 20548528]

約数ペア:

[(1, 20548528), (2, 10274264), (4, 5137132), (7, 2935504), (8, 2568566), (11, 1868048), (13, 1580656), (14, 1467752), (16, 1284283), (22, 934024), (26, 790328), (28, 733876), (44, 467012), (52, 395164), (56, 366938), (77, 266864), (88, 233506), (91, 225808), (104, 197582), (112, 183469), (143, 143696), (154, 133432), (176, 116753), (182, 112904), (208, 98791), (286, 71848), (308, 66716), (364, 56452), (572, 35924), (616, 33358), (728, 28226), (1001, 20528), (1144, 17962), (1232, 16679), (1283, 16016), (1456, 14113), (2002, 10264), (2288, 8981), (2566, 8008), (4004, 5132)]