12726940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21943}}^1$

素因数の和:21981

約数の個数: 24

約数和(自身を含む): 27649440

約数和(自身を除く): 14922500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 21943, 43886, 87772, 109715, 219430, 438860, 636347, 1272694, 2545388, 3181735, 6363470, 12726940]

約数ペア:

[(1, 12726940), (2, 6363470), (4, 3181735), (5, 2545388), (10, 1272694), (20, 636347), (29, 438860), (58, 219430), (116, 109715), (145, 87772), (290, 43886), (580, 21943)]