20123811290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16631249}}^1$

素因数の和:16631278

約数の個数: 24

約数和(自身を含む): 39815212500

約数和(自身を除く): 19691401210

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16631249, 33262498, 83156245, 166312490, 182943739, 365887478, 914718695, 1829437390, 2012381129, 4024762258, 10061905645, 20123811290]

約数ペア:

[(1, 20123811290), (2, 10061905645), (5, 4024762258), (10, 2012381129), (11, 1829437390), (22, 914718695), (55, 365887478), (110, 182943739), (121, 166312490), (242, 83156245), (605, 33262498), (1210, 16631249)]