388616540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1494679}}^1$

素因数の和:1494701

約数の個数: 24

約数和(自身を含む): 878871840

約数和(自身を除く): 490255300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1494679, 2989358, 5978716, 7473395, 14946790, 19430827, 29893580, 38861654, 77723308, 97154135, 194308270, 388616540]

約数ペア:

[(1, 388616540), (2, 194308270), (4, 97154135), (5, 77723308), (10, 38861654), (13, 29893580), (20, 19430827), (26, 14946790), (52, 7473395), (65, 5978716), (130, 2989358), (260, 1494679)]