12420790

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1231}}^1$

素因数の和:2247

約数の個数: 16

約数和(自身を含む): 22397760

約数和(自身を除く): 9976970

約数列:

[1, 2, 5, 10, 1009, 1231, 2018, 2462, 5045, 6155, 10090, 12310, 1242079, 2484158, 6210395, 12420790]

約数ペア:

[(1, 12420790), (2, 6210395), (5, 2484158), (10, 1242079), (1009, 12310), (1231, 10090), (2018, 6155), (2462, 5045)]