28567880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64927}}^1$

素因数の和:64949

約数の個数: 32

約数和(自身を含む): 70122240

約数和(自身を除く): 41554360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64927, 129854, 259708, 324635, 519416, 649270, 714197, 1298540, 1428394, 2597080, 2856788, 3570985, 5713576, 7141970, 14283940, 28567880]

約数ペア:

[(1, 28567880), (2, 14283940), (4, 7141970), (5, 5713576), (8, 3570985), (10, 2856788), (11, 2597080), (20, 1428394), (22, 1298540), (40, 714197), (44, 649270), (55, 519416), (88, 324635), (110, 259708), (220, 129854), (440, 64927)]