205435318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 342144000

約数和(自身を除く): 136708682

約数列:

[1, 2, 11, 22, 89, 178, 239, 439, 478, 878, 979, 1958, 2629, 4829, 5258, 9658, 21271, 39071, 42542, 78142, 104921, 209842, 233981, 429781, 467962, 859562, 1154131, 2308262, 9337969, 18675938, 102717659, 205435318]

約数ペア:

[(1, 205435318), (2, 102717659), (11, 18675938), (22, 9337969), (89, 2308262), (178, 1154131), (239, 859562), (439, 467962), (478, 429781), (878, 233981), (979, 209842), (1958, 104921), (2629, 78142), (4829, 42542), (5258, 39071), (9658, 21271)]