205987124

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{17987}}^1$

素因数の和:18407

約数の個数: 24

約数和(自身を含む): 413004480

約数和(自身を除く): 207017356

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 2863, 5726, 11452, 17987, 35974, 71948, 125909, 251818, 503636, 7356683, 14713366, 29426732, 51496781, 102993562, 205987124]

約数ペア:

[(1, 205987124), (2, 102993562), (4, 51496781), (7, 29426732), (14, 14713366), (28, 7356683), (409, 503636), (818, 251818), (1636, 125909), (2863, 71948), (5726, 35974), (11452, 17987)]