28327340

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3463}}^1$

素因数の和:3881

約数の個数: 24

約数和(自身を含む): 59650080

約数和(自身を除く): 31322740

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3463, 4090, 6926, 8180, 13852, 17315, 34630, 69260, 1416367, 2832734, 5665468, 7081835, 14163670, 28327340]

約数ペア:

[(1, 28327340), (2, 14163670), (4, 7081835), (5, 5665468), (10, 2832734), (20, 1416367), (409, 69260), (818, 34630), (1636, 17315), (2045, 13852), (3463, 8180), (4090, 6926)]