21608640

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 224

約数和(自身を含む): 79369920

約数和(自身を除く): 57761280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 41, 45, 48, 54, 60, 61, 64, 72, 80, 82, 90, 96, 108, 120, 122, 123, 135, 144, 160, 164, 180, 183, 192, 205, 216, 240, 244, 246, 270, 288, 305, 320, 328, 360, 366, 369, 410, 432, 480, 488, 492, 540, 549, 576, 610, 615, 656, 720, 732, 738, 820, 864, 915, 960, 976, 984, 1080, 1098, 1107, 1220, 1230, 1312, 1440, 1464, 1476, 1640, 1647, 1728, 1830, 1845, 1952, 1968, 2160, 2196, 2214, 2440, 2460, 2501, 2624, 2745, 2880, 2928, 2952, 3280, 3294, 3660, 3690, 3904, 3936, 4320, 4392, 4428, 4880, 4920, 5002, 5490, 5535, 5856, 5904, 6560, 6588, 7320, 7380, 7503, 7872, 8235, 8640, 8784, 8856, 9760, 9840, 10004, 10980, 11070, 11712, 11808, 12505, 13120, 13176, 14640, 14760, 15006, 16470, 17568, 17712, 19520, 19680, 20008, 21960, 22140, 22509, 23616, 25010, 26352, 29280, 29520, 30012, 32940, 35136, 35424, 37515, 39360, 40016, 43920, 44280, 45018, 50020, 52704, 58560, 59040, 60024, 65880, 67527, 70848, 75030, 80032, 87840, 88560, 90036, 100040, 105408, 112545, 118080, 120048, 131760, 135054, 150060, 160064, 175680, 177120, 180072, 200080, 225090, 240096, 263520, 270108, 300120, 337635, 354240, 360144, 400160, 450180, 480192, 527040, 540216, 600240, 675270, 720288, 800320, 900360, 1080432, 1200480, 1350540, 1440576, 1800720, 2160864, 2400960, 2701080, 3601440, 4321728, 5402160, 7202880, 10804320, 21608640]

約数ペア:

[(1, 21608640), (2, 10804320), (3, 7202880), (4, 5402160), (5, 4321728), (6, 3601440), (8, 2701080), (9, 2400960), (10, 2160864), (12, 1800720), (15, 1440576), (16, 1350540), (18, 1200480), (20, 1080432), (24, 900360), (27, 800320), (30, 720288), (32, 675270), (36, 600240), (40, 540216), (41, 527040), (45, 480192), (48, 450180), (54, 400160), (60, 360144), (61, 354240), (64, 337635), (72, 300120), (80, 270108), (82, 263520), (90, 240096), (96, 225090), (108, 200080), (120, 180072), (122, 177120), (123, 175680), (135, 160064), (144, 150060), (160, 135054), (164, 131760), (180, 120048), (183, 118080), (192, 112545), (205, 105408), (216, 100040), (240, 90036), (244, 88560), (246, 87840), (270, 80032), (288, 75030), (305, 70848), (320, 67527), (328, 65880), (360, 60024), (366, 59040), (369, 58560), (410, 52704), (432, 50020), (480, 45018), (488, 44280), (492, 43920), (540, 40016), (549, 39360), (576, 37515), (610, 35424), (615, 35136), (656, 32940), (720, 30012), (732, 29520), (738, 29280), (820, 26352), (864, 25010), (915, 23616), (960, 22509), (976, 22140), (984, 21960), (1080, 20008), (1098, 19680), (1107, 19520), (1220, 17712), (1230, 17568), (1312, 16470), (1440, 15006), (1464, 14760), (1476, 14640), (1640, 13176), (1647, 13120), (1728, 12505), (1830, 11808), (1845, 11712), (1952, 11070), (1968, 10980), (2160, 10004), (2196, 9840), (2214, 9760), (2440, 8856), (2460, 8784), (2501, 8640), (2624, 8235), (2745, 7872), (2880, 7503), (2928, 7380), (2952, 7320), (3280, 6588), (3294, 6560), (3660, 5904), (3690, 5856), (3904, 5535), (3936, 5490), (4320, 5002), (4392, 4920), (4428, 4880)]