68878576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{331147}}^1$

素因数の和:331168

約数の個数: 20

約数和(自身を含む): 143718232

約数和(自身を除く): 74839656

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 331147, 662294, 1324588, 2649176, 4304911, 5298352, 8609822, 17219644, 34439288, 68878576]

約数ペア:

[(1, 68878576), (2, 34439288), (4, 17219644), (8, 8609822), (13, 5298352), (16, 4304911), (26, 2649176), (52, 1324588), (104, 662294), (208, 331147)]