128261672

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{208217}}^1$

素因数の和:208241

約数の個数: 32

約数和(自身を含む): 299833920

約数和(自身を除く): 171572248

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 208217, 416434, 832868, 1457519, 1665736, 2290387, 2915038, 4580774, 5830076, 9161548, 11660152, 16032709, 18323096, 32065418, 64130836, 128261672]

約数ペア:

[(1, 128261672), (2, 64130836), (4, 32065418), (7, 18323096), (8, 16032709), (11, 11660152), (14, 9161548), (22, 5830076), (28, 4580774), (44, 2915038), (56, 2290387), (77, 1665736), (88, 1457519), (154, 832868), (308, 416434), (616, 208217)]