55490960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 148490496

約数和(自身を除く): 92999536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 503, 560, 788, 985, 1006, 1379, 1576, 1970, 2012, 2515, 2758, 3152, 3521, 3940, 4024, 5030, 5516, 6895, 7042, 7880, 8048, 10060, 11032, 13790, 14084, 15760, 17605, 20120, 22064, 27580, 28168, 35210, 40240, 55160, 56336, 70420, 99091, 110320, 140840, 198182, 281680, 396364, 495455, 693637, 792728, 990910, 1387274, 1585456, 1981820, 2774548, 3468185, 3963640, 5549096, 6936370, 7927280, 11098192, 13872740, 27745480, 55490960]

約数ペア:

[(1, 55490960), (2, 27745480), (4, 13872740), (5, 11098192), (7, 7927280), (8, 6936370), (10, 5549096), (14, 3963640), (16, 3468185), (20, 2774548), (28, 1981820), (35, 1585456), (40, 1387274), (56, 990910), (70, 792728), (80, 693637), (112, 495455), (140, 396364), (197, 281680), (280, 198182), (394, 140840), (503, 110320), (560, 99091), (788, 70420), (985, 56336), (1006, 55160), (1379, 40240), (1576, 35210), (1970, 28168), (2012, 27580), (2515, 22064), (2758, 20120), (3152, 17605), (3521, 15760), (3940, 14084), (4024, 13790), (5030, 11032), (5516, 10060), (6895, 8048), (7042, 7880)]