513565540

素因数分解:

$2^2\times 5^1\times {\mathrm{2503}}^1\times {\mathrm{10259}}^1$

素因数の和:12771

約数の個数: 24

約数和(自身を含む): 1079023680

約数和(自身を除く): 565458140

約数列:

[1, 2, 4, 5, 10, 20, 2503, 5006, 10012, 10259, 12515, 20518, 25030, 41036, 50060, 51295, 102590, 205180, 25678277, 51356554, 102713108, 128391385, 256782770, 513565540]

約数ペア:

[(1, 513565540), (2, 256782770), (4, 128391385), (5, 102713108), (10, 51356554), (20, 25678277), (2503, 205180), (5006, 102590), (10012, 51295), (10259, 50060), (12515, 41036), (20518, 25030)]