66847820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257107}}^1$

素因数の和:257129

約数の個数: 24

約数和(自身を含む): 151179504

約数和(自身を除く): 84331684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257107, 514214, 1028428, 1285535, 2571070, 3342391, 5142140, 6684782, 13369564, 16711955, 33423910, 66847820]

約数ペア:

[(1, 66847820), (2, 33423910), (4, 16711955), (5, 13369564), (10, 6684782), (13, 5142140), (20, 3342391), (26, 2571070), (52, 1285535), (65, 1028428), (130, 514214), (260, 257107)]