990234240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:311

約数の個数: 256

約数和(自身を含む): 3308912640

約数和(自身を除く): 2318678400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 127, 128, 131, 155, 160, 186, 192, 240, 248, 254, 262, 310, 320, 372, 381, 384, 393, 465, 480, 496, 508, 524, 620, 635, 640, 655, 744, 762, 786, 930, 960, 992, 1016, 1048, 1240, 1270, 1310, 1488, 1524, 1572, 1860, 1905, 1920, 1965, 1984, 2032, 2096, 2480, 2540, 2620, 2976, 3048, 3144, 3720, 3810, 3930, 3937, 3968, 4061, 4064, 4192, 4960, 5080, 5240, 5952, 6096, 6288, 7440, 7620, 7860, 7874, 8122, 8128, 8384, 9920, 10160, 10480, 11811, 11904, 12183, 12192, 12576, 14880, 15240, 15720, 15748, 16244, 16256, 16637, 16768, 19685, 19840, 20305, 20320, 20960, 23622, 24366, 24384, 25152, 29760, 30480, 31440, 31496, 32488, 33274, 39370, 40610, 40640, 41920, 47244, 48732, 48768, 49911, 50304, 59055, 59520, 60915, 60960, 62880, 62992, 64976, 66548, 78740, 81220, 81280, 83185, 83840, 94488, 97464, 99822, 118110, 121830, 121920, 125760, 125984, 129952, 133096, 157480, 162440, 166370, 188976, 194928, 199644, 236220, 243660, 243840, 249555, 251520, 251968, 259904, 266192, 314960, 324880, 332740, 377952, 389856, 399288, 472440, 487320, 499110, 503936, 515747, 519808, 532384, 629920, 649760, 665480, 755904, 779712, 798576, 944880, 974640, 998220, 1031494, 1064768, 1259840, 1299520, 1330960, 1511808, 1547241, 1559424, 1597152, 1889760, 1949280, 1996440, 2062988, 2129536, 2519680, 2578735, 2599040, 2661920, 3094482, 3194304, 3779520, 3898560, 3992880, 4125976, 5157470, 5323840, 6188964, 6388608, 7559040, 7736205, 7797120, 7985760, 8251952, 10314940, 10647680, 12377928, 15472410, 15971520, 16503904, 20629880, 24755856, 30944820, 31943040, 33007808, 41259760, 49511712, 61889640, 66015616, 82519520, 99023424, 123779280, 165039040, 198046848, 247558560, 330078080, 495117120, 990234240]

約数ペア:

[(1, 990234240), (2, 495117120), (3, 330078080), (4, 247558560), (5, 198046848), (6, 165039040), (8, 123779280), (10, 99023424), (12, 82519520), (15, 66015616), (16, 61889640), (20, 49511712), (24, 41259760), (30, 33007808), (31, 31943040), (32, 30944820), (40, 24755856), (48, 20629880), (60, 16503904), (62, 15971520), (64, 15472410), (80, 12377928), (93, 10647680), (96, 10314940), (120, 8251952), (124, 7985760), (127, 7797120), (128, 7736205), (131, 7559040), (155, 6388608), (160, 6188964), (186, 5323840), (192, 5157470), (240, 4125976), (248, 3992880), (254, 3898560), (262, 3779520), (310, 3194304), (320, 3094482), (372, 2661920), (381, 2599040), (384, 2578735), (393, 2519680), (465, 2129536), (480, 2062988), (496, 1996440), (508, 1949280), (524, 1889760), (620, 1597152), (635, 1559424), (640, 1547241), (655, 1511808), (744, 1330960), (762, 1299520), (786, 1259840), (930, 1064768), (960, 1031494), (992, 998220), (1016, 974640), (1048, 944880), (1240, 798576), (1270, 779712), (1310, 755904), (1488, 665480), (1524, 649760), (1572, 629920), (1860, 532384), (1905, 519808), (1920, 515747), (1965, 503936), (1984, 499110), (2032, 487320), (2096, 472440), (2480, 399288), (2540, 389856), (2620, 377952), (2976, 332740), (3048, 324880), (3144, 314960), (3720, 266192), (3810, 259904), (3930, 251968), (3937, 251520), (3968, 249555), (4061, 243840), (4064, 243660), (4192, 236220), (4960, 199644), (5080, 194928), (5240, 188976), (5952, 166370), (6096, 162440), (6288, 157480), (7440, 133096), (7620, 129952), (7860, 125984), (7874, 125760), (8122, 121920), (8128, 121830), (8384, 118110), (9920, 99822), (10160, 97464), (10480, 94488), (11811, 83840), (11904, 83185), (12183, 81280), (12192, 81220), (12576, 78740), (14880, 66548), (15240, 64976), (15720, 62992), (15748, 62880), (16244, 60960), (16256, 60915), (16637, 59520), (16768, 59055), (19685, 50304), (19840, 49911), (20305, 48768), (20320, 48732), (20960, 47244), (23622, 41920), (24366, 40640), (24384, 40610), (25152, 39370), (29760, 33274), (30480, 32488), (31440, 31496)]