1277190380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{459421}}^1$

素因数の和:459569

約数の個数: 24

約数和(自身を含む): 2701401360

約数和(自身を除く): 1424210980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 459421, 918842, 1837684, 2297105, 4594210, 9188420, 63859519, 127719038, 255438076, 319297595, 638595190, 1277190380]

約数ペア:

[(1, 1277190380), (2, 638595190), (4, 319297595), (5, 255438076), (10, 127719038), (20, 63859519), (139, 9188420), (278, 4594210), (556, 2297105), (695, 1837684), (1390, 918842), (2780, 459421)]