205967440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1867}}^1$

素因数の和:2084

約数の個数: 80

約数和(自身を含む): 550357632

約数和(自身を除く): 344390192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1867, 1970, 2758, 3152, 3734, 3940, 5516, 6895, 7468, 7880, 9335, 11032, 13069, 13790, 14936, 15760, 18670, 22064, 26138, 27580, 29872, 37340, 52276, 55160, 65345, 74680, 104552, 110320, 130690, 149360, 209104, 261380, 367799, 522760, 735598, 1045520, 1471196, 1838995, 2574593, 2942392, 3677990, 5149186, 5884784, 7355980, 10298372, 12872965, 14711960, 20596744, 25745930, 29423920, 41193488, 51491860, 102983720, 205967440]

約数ペア:

[(1, 205967440), (2, 102983720), (4, 51491860), (5, 41193488), (7, 29423920), (8, 25745930), (10, 20596744), (14, 14711960), (16, 12872965), (20, 10298372), (28, 7355980), (35, 5884784), (40, 5149186), (56, 3677990), (70, 2942392), (80, 2574593), (112, 1838995), (140, 1471196), (197, 1045520), (280, 735598), (394, 522760), (560, 367799), (788, 261380), (985, 209104), (1379, 149360), (1576, 130690), (1867, 110320), (1970, 104552), (2758, 74680), (3152, 65345), (3734, 55160), (3940, 52276), (5516, 37340), (6895, 29872), (7468, 27580), (7880, 26138), (9335, 22064), (11032, 18670), (13069, 15760), (13790, 14936)]