128426818

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{409}}^1\times {\mathrm{929}}^1$

素因数の和:1366

約数の個数: 24

約数和(自身を含む): 209333700

約数和(自身を除く): 80906882

約数列:

[1, 2, 13, 26, 169, 338, 409, 818, 929, 1858, 5317, 10634, 12077, 24154, 69121, 138242, 157001, 314002, 379961, 759922, 4939493, 9878986, 64213409, 128426818]

約数ペア:

[(1, 128426818), (2, 64213409), (13, 9878986), (26, 4939493), (169, 759922), (338, 379961), (409, 314002), (818, 157001), (929, 138242), (1858, 69121), (5317, 24154), (10634, 12077)]