51867280

素因数分解:

$2^4\times 5^1\times {\mathrm{648341}}^1$

素因数の和:648354

約数の個数: 20

約数和(自身を含む): 120591612

約数和(自身を除く): 68724332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648341, 1296682, 2593364, 3241705, 5186728, 6483410, 10373456, 12966820, 25933640, 51867280]

約数ペア:

[(1, 51867280), (2, 25933640), (4, 12966820), (5, 10373456), (8, 6483410), (10, 5186728), (16, 3241705), (20, 2593364), (40, 1296682), (80, 648341)]