12809780

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2381}}^1$

素因数の和:2659

約数の個数: 24

約数和(自身を含む): 27011880

約数和(自身を除く): 14202100

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2381, 2690, 4762, 5380, 9524, 11905, 23810, 47620, 640489, 1280978, 2561956, 3202445, 6404890, 12809780]

約数ペア:

[(1, 12809780), (2, 6404890), (4, 3202445), (5, 2561956), (10, 1280978), (20, 640489), (269, 47620), (538, 23810), (1076, 11905), (1345, 9524), (2381, 5380), (2690, 4762)]