12945340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15787}}^1$

素因数の和:15837

約数の個数: 24

約数和(自身を含む): 27850032

約数和(自身を除く): 14904692

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15787, 31574, 63148, 78935, 157870, 315740, 647267, 1294534, 2589068, 3236335, 6472670, 12945340]

約数ペア:

[(1, 12945340), (2, 6472670), (4, 3236335), (5, 2589068), (10, 1294534), (20, 647267), (41, 315740), (82, 157870), (164, 78935), (205, 63148), (410, 31574), (820, 15787)]