1279071820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4919507}}^1$

素因数の和:4919529

約数の個数: 24

約数和(自身を含む): 2892670704

約数和(自身を除く): 1613598884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4919507, 9839014, 19678028, 24597535, 49195070, 63953591, 98390140, 127907182, 255814364, 319767955, 639535910, 1279071820]

約数ペア:

[(1, 1279071820), (2, 639535910), (4, 319767955), (5, 255814364), (10, 127907182), (13, 98390140), (20, 63953591), (26, 49195070), (52, 24597535), (65, 19678028), (130, 9839014), (260, 4919507)]