9989280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{991}}^1$

素因数の和:1019

約数の個数: 144

約数和(自身を含む): 38997504

約数和(自身を除く): 29008224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 991, 1008, 1120, 1260, 1440, 1680, 1982, 2016, 2520, 2973, 3360, 3964, 4955, 5040, 5946, 6937, 7928, 8919, 9910, 10080, 11892, 13874, 14865, 15856, 17838, 19820, 20811, 23784, 27748, 29730, 31712, 34685, 35676, 39640, 41622, 44595, 47568, 55496, 59460, 62433, 69370, 71352, 79280, 83244, 89190, 95136, 104055, 110992, 118920, 124866, 138740, 142704, 158560, 166488, 178380, 208110, 221984, 237840, 249732, 277480, 285408, 312165, 332976, 356760, 416220, 475680, 499464, 554960, 624330, 665952, 713520, 832440, 998928, 1109920, 1248660, 1427040, 1664880, 1997856, 2497320, 3329760, 4994640, 9989280]

約数ペア:

[(1, 9989280), (2, 4994640), (3, 3329760), (4, 2497320), (5, 1997856), (6, 1664880), (7, 1427040), (8, 1248660), (9, 1109920), (10, 998928), (12, 832440), (14, 713520), (15, 665952), (16, 624330), (18, 554960), (20, 499464), (21, 475680), (24, 416220), (28, 356760), (30, 332976), (32, 312165), (35, 285408), (36, 277480), (40, 249732), (42, 237840), (45, 221984), (48, 208110), (56, 178380), (60, 166488), (63, 158560), (70, 142704), (72, 138740), (80, 124866), (84, 118920), (90, 110992), (96, 104055), (105, 95136), (112, 89190), (120, 83244), (126, 79280), (140, 71352), (144, 69370), (160, 62433), (168, 59460), (180, 55496), (210, 47568), (224, 44595), (240, 41622), (252, 39640), (280, 35676), (288, 34685), (315, 31712), (336, 29730), (360, 27748), (420, 23784), (480, 20811), (504, 19820), (560, 17838), (630, 15856), (672, 14865), (720, 13874), (840, 11892), (991, 10080), (1008, 9910), (1120, 8919), (1260, 7928), (1440, 6937), (1680, 5946), (1982, 5040), (2016, 4955), (2520, 3964), (2973, 3360)]