388640774

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{613}}^1\times {\mathrm{643}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 640573920

約数和(自身を除く): 251933146

約数列:

[1, 2, 17, 29, 34, 58, 493, 613, 643, 986, 1226, 1286, 10421, 10931, 17777, 18647, 20842, 21862, 35554, 37294, 302209, 316999, 394159, 604418, 633998, 788318, 6700703, 11430611, 13401406, 22861222, 194320387, 388640774]

約数ペア:

[(1, 388640774), (2, 194320387), (17, 22861222), (29, 13401406), (34, 11430611), (58, 6700703), (493, 788318), (613, 633998), (643, 604418), (986, 394159), (1226, 316999), (1286, 302209), (10421, 37294), (10931, 35554), (17777, 21862), (18647, 20842)]