28427140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203051}}^1$

素因数の和:203067

約数の個数: 24

約数和(自身を含む): 68225472

約数和(自身を除く): 39798332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203051, 406102, 812204, 1015255, 1421357, 2030510, 2842714, 4061020, 5685428, 7106785, 14213570, 28427140]

約数ペア:

[(1, 28427140), (2, 14213570), (4, 7106785), (5, 5685428), (7, 4061020), (10, 2842714), (14, 2030510), (20, 1421357), (28, 1015255), (35, 812204), (70, 406102), (140, 203051)]