81368880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1934

約数の個数: 80

約数和(自身を含む): 253671264

約数和(自身を除く): 172302384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 591, 788, 985, 1182, 1576, 1721, 1970, 2364, 2955, 3152, 3442, 3940, 4728, 5163, 5910, 6884, 7880, 8605, 9456, 10326, 11820, 13768, 15760, 17210, 20652, 23640, 25815, 27536, 34420, 41304, 47280, 51630, 68840, 82608, 103260, 137680, 206520, 339037, 413040, 678074, 1017111, 1356148, 1695185, 2034222, 2712296, 3390370, 4068444, 5085555, 5424592, 6780740, 8136888, 10171110, 13561480, 16273776, 20342220, 27122960, 40684440, 81368880]

約数ペア:

[(1, 81368880), (2, 40684440), (3, 27122960), (4, 20342220), (5, 16273776), (6, 13561480), (8, 10171110), (10, 8136888), (12, 6780740), (15, 5424592), (16, 5085555), (20, 4068444), (24, 3390370), (30, 2712296), (40, 2034222), (48, 1695185), (60, 1356148), (80, 1017111), (120, 678074), (197, 413040), (240, 339037), (394, 206520), (591, 137680), (788, 103260), (985, 82608), (1182, 68840), (1576, 51630), (1721, 47280), (1970, 41304), (2364, 34420), (2955, 27536), (3152, 25815), (3442, 23640), (3940, 20652), (4728, 17210), (5163, 15760), (5910, 13768), (6884, 11820), (7880, 10326), (8605, 9456)]