42807580

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7727}}^1$

素因数の和:8013

約数の個数: 24

約数和(自身を含む): 90232128

約数和(自身を除く): 47424548

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 7727, 15454, 30908, 38635, 77270, 154540, 2140379, 4280758, 8561516, 10701895, 21403790, 42807580]

約数ペア:

[(1, 42807580), (2, 21403790), (4, 10701895), (5, 8561516), (10, 4280758), (20, 2140379), (277, 154540), (554, 77270), (1108, 38635), (1385, 30908), (2770, 15454), (5540, 7727)]