20085081718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{128987}}^1$

素因数の和:129168

約数の個数: 32

約数和(自身を含む): 33350105376

約数和(自身を除く): 13265023658

約数列:

[1, 2, 13, 26, 53, 106, 113, 226, 689, 1378, 1469, 2938, 5989, 11978, 77857, 128987, 155714, 257974, 1676831, 3353662, 6836311, 13672622, 14575531, 29151062, 88872043, 177744086, 189481903, 378963806, 772503143, 1545006286, 10042540859, 20085081718]

約数ペア:

[(1, 20085081718), (2, 10042540859), (13, 1545006286), (26, 772503143), (53, 378963806), (106, 189481903), (113, 177744086), (226, 88872043), (689, 29151062), (1378, 14575531), (1469, 13672622), (2938, 6836311), (5989, 3353662), (11978, 1676831), (77857, 257974), (128987, 155714)]