20178026344

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1255477}}^1$

素因数の和:1255538

約数の個数: 48

約数和(自身を含む): 45084214980

約数和(自身を除く): 24906188636

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 328, 392, 574, 1148, 2009, 2296, 4018, 8036, 16072, 1255477, 2510954, 5021908, 8788339, 10043816, 17576678, 35153356, 51474557, 61518373, 70306712, 102949114, 123036746, 205898228, 246073492, 360321899, 411796456, 492146984, 720643798, 1441287596, 2522253293, 2882575192, 5044506586, 10089013172, 20178026344]

約数ペア:

[(1, 20178026344), (2, 10089013172), (4, 5044506586), (7, 2882575192), (8, 2522253293), (14, 1441287596), (28, 720643798), (41, 492146984), (49, 411796456), (56, 360321899), (82, 246073492), (98, 205898228), (164, 123036746), (196, 102949114), (287, 70306712), (328, 61518373), (392, 51474557), (574, 35153356), (1148, 17576678), (2009, 10043816), (2296, 8788339), (4018, 5021908), (8036, 2510954), (16072, 1255477)]