12868880

素因数分解:

$2^4\times 5^1\times {\mathrm{160861}}^1$

素因数の和:160874

約数の個数: 20

約数和(自身を含む): 29920332

約数和(自身を除く): 17051452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160861, 321722, 643444, 804305, 1286888, 1608610, 2573776, 3217220, 6434440, 12868880]

約数ペア:

[(1, 12868880), (2, 6434440), (4, 3217220), (5, 2573776), (8, 1608610), (10, 1286888), (16, 804305), (20, 643444), (40, 321722), (80, 160861)]