28082120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63823}}^1$

素因数の和:63845

約数の個数: 32

約数和(自身を含む): 68929920

約数和(自身を除く): 40847800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63823, 127646, 255292, 319115, 510584, 638230, 702053, 1276460, 1404106, 2552920, 2808212, 3510265, 5616424, 7020530, 14041060, 28082120]

約数ペア:

[(1, 28082120), (2, 14041060), (4, 7020530), (5, 5616424), (8, 3510265), (10, 2808212), (11, 2552920), (20, 1404106), (22, 1276460), (40, 702053), (44, 638230), (55, 510584), (88, 319115), (110, 255292), (220, 127646), (440, 63823)]