27439990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1039}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 52416000

約数和(自身を除く): 24976010

約数列:

[1, 2, 5, 10, 19, 38, 95, 139, 190, 278, 695, 1039, 1390, 2078, 2641, 5195, 5282, 10390, 13205, 19741, 26410, 39482, 98705, 144421, 197410, 288842, 722105, 1444210, 2743999, 5487998, 13719995, 27439990]

約数ペア:

[(1, 27439990), (2, 13719995), (5, 5487998), (10, 2743999), (19, 1444210), (38, 722105), (95, 288842), (139, 197410), (190, 144421), (278, 98705), (695, 39482), (1039, 26410), (1390, 19741), (2078, 13205), (2641, 10390), (5195, 5282)]