212678860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{247301}}^1$

素因数の和:247353

約数の個数: 24

約数和(自身を含む): 457014096

約数和(自身を除く): 244335236

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 247301, 494602, 989204, 1236505, 2473010, 4946020, 10633943, 21267886, 42535772, 53169715, 106339430, 212678860]

約数ペア:

[(1, 212678860), (2, 106339430), (4, 53169715), (5, 42535772), (10, 21267886), (20, 10633943), (43, 4946020), (86, 2473010), (172, 1236505), (215, 989204), (430, 494602), (860, 247301)]