15980800

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:264

約数の個数: 108

約数和(自身を含む): 43340976

約数和(自身を除く): 27360176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 128, 160, 176, 200, 220, 227, 256, 275, 320, 352, 400, 440, 454, 550, 640, 704, 800, 880, 908, 1100, 1135, 1280, 1408, 1600, 1760, 1816, 2200, 2270, 2497, 2816, 3200, 3520, 3632, 4400, 4540, 4994, 5675, 6400, 7040, 7264, 8800, 9080, 9988, 11350, 12485, 14080, 14528, 17600, 18160, 19976, 22700, 24970, 29056, 35200, 36320, 39952, 45400, 49940, 58112, 62425, 70400, 72640, 79904, 90800, 99880, 124850, 145280, 159808, 181600, 199760, 249700, 290560, 319616, 363200, 399520, 499400, 639232, 726400, 799040, 998800, 1452800, 1598080, 1997600, 3196160, 3995200, 7990400, 15980800]

約数ペア:

[(1, 15980800), (2, 7990400), (4, 3995200), (5, 3196160), (8, 1997600), (10, 1598080), (11, 1452800), (16, 998800), (20, 799040), (22, 726400), (25, 639232), (32, 499400), (40, 399520), (44, 363200), (50, 319616), (55, 290560), (64, 249700), (80, 199760), (88, 181600), (100, 159808), (110, 145280), (128, 124850), (160, 99880), (176, 90800), (200, 79904), (220, 72640), (227, 70400), (256, 62425), (275, 58112), (320, 49940), (352, 45400), (400, 39952), (440, 36320), (454, 35200), (550, 29056), (640, 24970), (704, 22700), (800, 19976), (880, 18160), (908, 17600), (1100, 14528), (1135, 14080), (1280, 12485), (1408, 11350), (1600, 9988), (1760, 9080), (1816, 8800), (2200, 7264), (2270, 7040), (2497, 6400), (2816, 5675), (3200, 4994), (3520, 4540), (3632, 4400)]