399370908

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{239431}}^1$

素因数の和:239577

約数の個数: 24

約数和(自身を含む): 938573440

約数和(自身を除く): 539202532

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 239431, 478862, 718293, 957724, 1436586, 2873172, 33280909, 66561818, 99842727, 133123636, 199685454, 399370908]

約数ペア:

[(1, 399370908), (2, 199685454), (3, 133123636), (4, 99842727), (6, 66561818), (12, 33280909), (139, 2873172), (278, 1436586), (417, 957724), (556, 718293), (834, 478862), (1668, 239431)]