19281680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21911}}^1$

素因数の和:21935

約数の個数: 40

約数和(自身を含む): 48907584

約数和(自身を除く): 29625904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21911, 43822, 87644, 109555, 175288, 219110, 241021, 350576, 438220, 482042, 876440, 964084, 1205105, 1752880, 1928168, 2410210, 3856336, 4820420, 9640840, 19281680]

約数ペア:

[(1, 19281680), (2, 9640840), (4, 4820420), (5, 3856336), (8, 2410210), (10, 1928168), (11, 1752880), (16, 1205105), (20, 964084), (22, 876440), (40, 482042), (44, 438220), (55, 350576), (80, 241021), (88, 219110), (110, 175288), (176, 109555), (220, 87644), (440, 43822), (880, 21911)]