255246080

素因数分解:

$2^8\times 5^1\times {\mathrm{199411}}^1$

素因数の和:199432

約数の個数: 36

約数和(自身を含む): 611397192

約数和(自身を除く): 356151112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 199411, 398822, 797644, 997055, 1595288, 1994110, 3190576, 3988220, 6381152, 7976440, 12762304, 15952880, 25524608, 31905760, 51049216, 63811520, 127623040, 255246080]

約数ペア:

[(1, 255246080), (2, 127623040), (4, 63811520), (5, 51049216), (8, 31905760), (10, 25524608), (16, 15952880), (20, 12762304), (32, 7976440), (40, 6381152), (64, 3988220), (80, 3190576), (128, 1994110), (160, 1595288), (256, 997055), (320, 797644), (640, 398822), (1280, 199411)]