19989152

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 41025600

約数和(自身を除く): 21036448

約数列:

[1, 2, 4, 8, 16, 32, 43, 73, 86, 146, 172, 199, 292, 344, 398, 584, 688, 796, 1168, 1376, 1592, 2336, 3139, 3184, 6278, 6368, 8557, 12556, 14527, 17114, 25112, 29054, 34228, 50224, 58108, 68456, 100448, 116216, 136912, 232432, 273824, 464864, 624661, 1249322, 2498644, 4997288, 9994576, 19989152]

約数ペア:

[(1, 19989152), (2, 9994576), (4, 4997288), (8, 2498644), (16, 1249322), (32, 624661), (43, 464864), (73, 273824), (86, 232432), (146, 136912), (172, 116216), (199, 100448), (292, 68456), (344, 58108), (398, 50224), (584, 34228), (688, 29054), (796, 25112), (1168, 17114), (1376, 14527), (1592, 12556), (2336, 8557), (3139, 6368), (3184, 6278)]