18761620

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1087}}^1$

素因数の和:1959

約数の個数: 24

約数和(自身を含む): 39481344

約数和(自身を除く): 20719724

約数列:

[1, 2, 4, 5, 10, 20, 863, 1087, 1726, 2174, 3452, 4315, 4348, 5435, 8630, 10870, 17260, 21740, 938081, 1876162, 3752324, 4690405, 9380810, 18761620]

約数ペア:

[(1, 18761620), (2, 9380810), (4, 4690405), (5, 3752324), (10, 1876162), (20, 938081), (863, 21740), (1087, 17260), (1726, 10870), (2174, 8630), (3452, 5435), (4315, 4348)]