54245920

素因数分解:

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

素因数の和:1933

約数の個数: 48

約数和(自身を含む): 128881368

約数和(自身を除く): 74635448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1721, 1970, 3152, 3442, 3940, 6304, 6884, 7880, 8605, 13768, 15760, 17210, 27536, 31520, 34420, 55072, 68840, 137680, 275360, 339037, 678074, 1356148, 1695185, 2712296, 3390370, 5424592, 6780740, 10849184, 13561480, 27122960, 54245920]

約数ペア:

[(1, 54245920), (2, 27122960), (4, 13561480), (5, 10849184), (8, 6780740), (10, 5424592), (16, 3390370), (20, 2712296), (32, 1695185), (40, 1356148), (80, 678074), (160, 339037), (197, 275360), (394, 137680), (788, 68840), (985, 55072), (1576, 34420), (1721, 31520), (1970, 27536), (3152, 17210), (3442, 15760), (3940, 13768), (6304, 8605), (6884, 7880)]