256168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 544320

約数和(自身を除く): 288152

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 71, 82, 88, 142, 164, 284, 328, 451, 568, 781, 902, 1562, 1804, 2911, 3124, 3608, 5822, 6248, 11644, 23288, 32021, 64042, 128084, 256168]

約数ペア:

[(1, 256168), (2, 128084), (4, 64042), (8, 32021), (11, 23288), (22, 11644), (41, 6248), (44, 5822), (71, 3608), (82, 3124), (88, 2911), (142, 1804), (164, 1562), (284, 902), (328, 781), (451, 568)]