133991680

素因数分解:

$2^8\times 5^1\times {\mathrm{104681}}^1$

素因数の和:104702

約数の個数: 36

約数和(自身を含む): 320955012

約数和(自身を除く): 186963332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 104681, 209362, 418724, 523405, 837448, 1046810, 1674896, 2093620, 3349792, 4187240, 6699584, 8374480, 13399168, 16748960, 26798336, 33497920, 66995840, 133991680]

約数ペア:

[(1, 133991680), (2, 66995840), (4, 33497920), (5, 26798336), (8, 16748960), (10, 13399168), (16, 8374480), (20, 6699584), (32, 4187240), (40, 3349792), (64, 2093620), (80, 1674896), (128, 1046810), (160, 837448), (256, 523405), (320, 418724), (640, 209362), (1280, 104681)]