20000990

素因数分解:

$2^1\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1871}}^1$

素因数の和:2947

約数の個数: 16

約数和(自身を含む): 36054720

約数和(自身を除く): 16053730

約数列:

[1, 2, 5, 10, 1069, 1871, 2138, 3742, 5345, 9355, 10690, 18710, 2000099, 4000198, 10000495, 20000990]

約数ペア:

[(1, 20000990), (2, 10000495), (5, 4000198), (10, 2000099), (1069, 18710), (1871, 10690), (2138, 9355), (3742, 5345)]