18081220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1709}}^1$

素因数の和:1764

約数の個数: 36

約数和(自身を含む): 39716460

約数和(自身を除く): 21635240

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1709, 2116, 2645, 3418, 5290, 6836, 8545, 10580, 17090, 34180, 39307, 78614, 157228, 196535, 393070, 786140, 904061, 1808122, 3616244, 4520305, 9040610, 18081220]

約数ペア:

[(1, 18081220), (2, 9040610), (4, 4520305), (5, 3616244), (10, 1808122), (20, 904061), (23, 786140), (46, 393070), (92, 196535), (115, 157228), (230, 78614), (460, 39307), (529, 34180), (1058, 17090), (1709, 10580), (2116, 8545), (2645, 6836), (3418, 5290)]