128394728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{208433}}^1$

素因数の和:208457

約数の個数: 32

約数和(自身を含む): 300144960

約数和(自身を除く): 171750232

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 208433, 416866, 833732, 1459031, 1667464, 2292763, 2918062, 4585526, 5836124, 9171052, 11672248, 16049341, 18342104, 32098682, 64197364, 128394728]

約数ペア:

[(1, 128394728), (2, 64197364), (4, 32098682), (7, 18342104), (8, 16049341), (11, 11672248), (14, 9171052), (22, 5836124), (28, 4585526), (44, 2918062), (56, 2292763), (77, 1667464), (88, 1459031), (154, 833732), (308, 416866), (616, 208433)]