28723618

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^2$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 55956672

約数和(自身を除く): 27233054

約数列:

[1, 2, 7, 11, 14, 22, 37, 71, 74, 77, 142, 154, 259, 407, 497, 518, 781, 814, 994, 1562, 2627, 2849, 5041, 5254, 5467, 5698, 10082, 10934, 18389, 28897, 35287, 36778, 55451, 57794, 70574, 110902, 186517, 202279, 373034, 388157, 404558, 776314, 1305619, 2051687, 2611238, 4103374, 14361809, 28723618]

約数ペア:

[(1, 28723618), (2, 14361809), (7, 4103374), (11, 2611238), (14, 2051687), (22, 1305619), (37, 776314), (71, 404558), (74, 388157), (77, 373034), (142, 202279), (154, 186517), (259, 110902), (407, 70574), (497, 57794), (518, 55451), (781, 36778), (814, 35287), (994, 28897), (1562, 18389), (2627, 10934), (2849, 10082), (5041, 5698), (5254, 5467)]