28435880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64627}}^1$

素因数の和:64649

約数の個数: 32

約数和(自身を含む): 69798240

約数和(自身を除く): 41362360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64627, 129254, 258508, 323135, 517016, 646270, 710897, 1292540, 1421794, 2585080, 2843588, 3554485, 5687176, 7108970, 14217940, 28435880]

約数ペア:

[(1, 28435880), (2, 14217940), (4, 7108970), (5, 5687176), (8, 3554485), (10, 2843588), (11, 2585080), (20, 1421794), (22, 1292540), (40, 710897), (44, 646270), (55, 517016), (88, 323135), (110, 258508), (220, 129254), (440, 64627)]