30186980

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1361}}^1$

素因数の和:2479

約数の個数: 24

約数和(自身を含む): 63496440

約数和(自身を除く): 33309460

約数列:

[1, 2, 4, 5, 10, 20, 1109, 1361, 2218, 2722, 4436, 5444, 5545, 6805, 11090, 13610, 22180, 27220, 1509349, 3018698, 6037396, 7546745, 15093490, 30186980]

約数ペア:

[(1, 30186980), (2, 15093490), (4, 7546745), (5, 6037396), (10, 3018698), (20, 1509349), (1109, 27220), (1361, 22180), (2218, 13610), (2722, 11090), (4436, 6805), (5444, 5545)]