313640660

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{10243}}^1$

素因数の和:11783

約数の個数: 24

約数和(自身を含む): 659139936

約数和(自身を除く): 345499276

約数列:

[1, 2, 4, 5, 10, 20, 1531, 3062, 6124, 7655, 10243, 15310, 20486, 30620, 40972, 51215, 102430, 204860, 15682033, 31364066, 62728132, 78410165, 156820330, 313640660]

約数ペア:

[(1, 313640660), (2, 156820330), (4, 78410165), (5, 62728132), (10, 31364066), (20, 15682033), (1531, 204860), (3062, 102430), (6124, 51215), (7655, 40972), (10243, 30620), (15310, 20486)]