12864560

素因数分解:

$2^4\times 5^1\times {\mathrm{160807}}^1$

素因数の和:160820

約数の個数: 20

約数和(自身を含む): 29910288

約数和(自身を除く): 17045728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160807, 321614, 643228, 804035, 1286456, 1608070, 2572912, 3216140, 6432280, 12864560]

約数ペア:

[(1, 12864560), (2, 6432280), (4, 3216140), (5, 2572912), (8, 1608070), (10, 1286456), (16, 804035), (20, 643228), (40, 321614), (80, 160807)]