20424712

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 28097528

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 467, 497, 568, 616, 781, 934, 994, 1562, 1868, 1988, 3124, 3269, 3736, 3976, 5137, 5467, 6248, 6538, 10274, 10934, 13076, 20548, 21868, 26152, 33157, 35959, 41096, 43736, 66314, 71918, 132628, 143836, 232099, 265256, 287672, 364727, 464198, 729454, 928396, 1458908, 1856792, 2553089, 2917816, 5106178, 10212356, 20424712]

約数ペア:

[(1, 20424712), (2, 10212356), (4, 5106178), (7, 2917816), (8, 2553089), (11, 1856792), (14, 1458908), (22, 928396), (28, 729454), (44, 464198), (56, 364727), (71, 287672), (77, 265256), (88, 232099), (142, 143836), (154, 132628), (284, 71918), (308, 66314), (467, 43736), (497, 41096), (568, 35959), (616, 33157), (781, 26152), (934, 21868), (994, 20548), (1562, 13076), (1868, 10934), (1988, 10274), (3124, 6538), (3269, 6248), (3736, 5467), (3976, 5137)]