39811880

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1051}}^1$

素因数の和:2009

約数の個数: 32

約数和(自身を含む): 89756640

約数和(自身を除く): 49944760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1051, 1894, 2102, 3788, 4204, 4735, 5255, 7576, 8408, 9470, 10510, 18940, 21020, 37880, 42040, 995297, 1990594, 3981188, 4976485, 7962376, 9952970, 19905940, 39811880]

約数ペア:

[(1, 39811880), (2, 19905940), (4, 9952970), (5, 7962376), (8, 4976485), (10, 3981188), (20, 1990594), (40, 995297), (947, 42040), (1051, 37880), (1894, 21020), (2102, 18940), (3788, 10510), (4204, 9470), (4735, 8408), (5255, 7576)]