129451180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{340661}}^1$

素因数の和:340689

約数の個数: 24

約数和(自身を含む): 286156080

約数和(自身を除く): 156704900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 340661, 681322, 1362644, 1703305, 3406610, 6472559, 6813220, 12945118, 25890236, 32362795, 64725590, 129451180]

約数ペア:

[(1, 129451180), (2, 64725590), (4, 32362795), (5, 25890236), (10, 12945118), (19, 6813220), (20, 6472559), (38, 3406610), (76, 1703305), (95, 1362644), (190, 681322), (380, 340661)]