25706828

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 53190144

約数和(自身を除く): 27483316

約数列:

[1, 2, 4, 7, 14, 28, 67, 71, 134, 142, 193, 268, 284, 386, 469, 497, 772, 938, 994, 1351, 1876, 1988, 2702, 4757, 5404, 9514, 12931, 13703, 19028, 25862, 27406, 33299, 51724, 54812, 66598, 90517, 95921, 133196, 181034, 191842, 362068, 383684, 918101, 1836202, 3672404, 6426707, 12853414, 25706828]

約数ペア:

[(1, 25706828), (2, 12853414), (4, 6426707), (7, 3672404), (14, 1836202), (28, 918101), (67, 383684), (71, 362068), (134, 191842), (142, 181034), (193, 133196), (268, 95921), (284, 90517), (386, 66598), (469, 54812), (497, 51724), (772, 33299), (938, 27406), (994, 25862), (1351, 19028), (1876, 13703), (1988, 12931), (2702, 9514), (4757, 5404)]