261983760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4349}}^1$

素因数の和:4616

約数の個数: 80

約数和(自身を含む): 815572800

約数和(自身を除く): 553589040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 502, 753, 1004, 1255, 1506, 2008, 2510, 3012, 3765, 4016, 4349, 5020, 6024, 7530, 8698, 10040, 12048, 13047, 15060, 17396, 20080, 21745, 26094, 30120, 34792, 43490, 52188, 60240, 65235, 69584, 86980, 104376, 130470, 173960, 208752, 260940, 347920, 521880, 1043760, 1091599, 2183198, 3274797, 4366396, 5457995, 6549594, 8732792, 10915990, 13099188, 16373985, 17465584, 21831980, 26198376, 32747970, 43663960, 52396752, 65495940, 87327920, 130991880, 261983760]

約数ペア:

[(1, 261983760), (2, 130991880), (3, 87327920), (4, 65495940), (5, 52396752), (6, 43663960), (8, 32747970), (10, 26198376), (12, 21831980), (15, 17465584), (16, 16373985), (20, 13099188), (24, 10915990), (30, 8732792), (40, 6549594), (48, 5457995), (60, 4366396), (80, 3274797), (120, 2183198), (240, 1091599), (251, 1043760), (502, 521880), (753, 347920), (1004, 260940), (1255, 208752), (1506, 173960), (2008, 130470), (2510, 104376), (3012, 86980), (3765, 69584), (4016, 65235), (4349, 60240), (5020, 52188), (6024, 43490), (7530, 34792), (8698, 30120), (10040, 26094), (12048, 21745), (13047, 20080), (15060, 17396)]