18841940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72469}}^1$

素因数の和:72491

約数の個数: 24

約数和(自身を含む): 42612360

約数和(自身を除く): 23770420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72469, 144938, 289876, 362345, 724690, 942097, 1449380, 1884194, 3768388, 4710485, 9420970, 18841940]

約数ペア:

[(1, 18841940), (2, 9420970), (4, 4710485), (5, 3768388), (10, 1884194), (13, 1449380), (20, 942097), (26, 724690), (52, 362345), (65, 289876), (130, 144938), (260, 72469)]