138798980

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{9391}}^1$

素因数の和:10139

約数の個数: 24

約数和(自身を含む): 291903360

約数和(自身を除く): 153104380

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 7390, 9391, 14780, 18782, 37564, 46955, 93910, 187820, 6939949, 13879898, 27759796, 34699745, 69399490, 138798980]

約数ペア:

[(1, 138798980), (2, 69399490), (4, 34699745), (5, 27759796), (10, 13879898), (20, 6939949), (739, 187820), (1478, 93910), (2956, 46955), (3695, 37564), (7390, 18782), (9391, 14780)]