28297192

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 67184640

約数和(自身を除く): 38887448

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 497, 568, 616, 647, 781, 994, 1294, 1562, 1988, 2588, 3124, 3976, 4529, 5176, 5467, 6248, 7117, 9058, 10934, 14234, 18116, 21868, 28468, 36232, 43736, 45937, 49819, 56936, 91874, 99638, 183748, 199276, 321559, 367496, 398552, 505307, 643118, 1010614, 1286236, 2021228, 2572472, 3537149, 4042456, 7074298, 14148596, 28297192]

約数ペア:

[(1, 28297192), (2, 14148596), (4, 7074298), (7, 4042456), (8, 3537149), (11, 2572472), (14, 2021228), (22, 1286236), (28, 1010614), (44, 643118), (56, 505307), (71, 398552), (77, 367496), (88, 321559), (142, 199276), (154, 183748), (284, 99638), (308, 91874), (497, 56936), (568, 49819), (616, 45937), (647, 43736), (781, 36232), (994, 28468), (1294, 21868), (1562, 18116), (1988, 14234), (2588, 10934), (3124, 9058), (3976, 7117), (4529, 6248), (5176, 5467)]