128407440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:270

約数の個数: 240

約数和(自身を含む): 473273280

約数和(自身を除く): 344865840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 61, 70, 80, 84, 98, 105, 112, 120, 122, 140, 147, 168, 179, 183, 196, 210, 240, 244, 245, 280, 294, 305, 336, 358, 366, 392, 420, 427, 488, 490, 537, 560, 588, 610, 716, 732, 735, 784, 840, 854, 895, 915, 976, 980, 1074, 1176, 1220, 1253, 1281, 1432, 1464, 1470, 1680, 1708, 1790, 1830, 1960, 2135, 2148, 2352, 2440, 2506, 2562, 2685, 2864, 2928, 2940, 2989, 3416, 3580, 3660, 3759, 3920, 4270, 4296, 4880, 5012, 5124, 5370, 5880, 5978, 6265, 6405, 6832, 7160, 7320, 7518, 8540, 8592, 8771, 8967, 10024, 10248, 10740, 10919, 11760, 11956, 12530, 12810, 14320, 14640, 14945, 15036, 17080, 17542, 17934, 18795, 20048, 20496, 21480, 21838, 23912, 25060, 25620, 26313, 29890, 30072, 32757, 34160, 35084, 35868, 37590, 42960, 43676, 43855, 44835, 47824, 50120, 51240, 52626, 54595, 59780, 60144, 65514, 70168, 71736, 75180, 76433, 87352, 87710, 89670, 100240, 102480, 105252, 109190, 119560, 131028, 131565, 140336, 143472, 150360, 152866, 163785, 174704, 175420, 179340, 210504, 218380, 229299, 239120, 262056, 263130, 300720, 305732, 327570, 350840, 358680, 382165, 421008, 436760, 458598, 524112, 526260, 535031, 611464, 655140, 701680, 717360, 764330, 873520, 917196, 1052520, 1070062, 1146495, 1222928, 1310280, 1528660, 1605093, 1834392, 2105040, 2140124, 2292990, 2620560, 2675155, 3057320, 3210186, 3668784, 4280248, 4585980, 5350310, 6114640, 6420372, 8025465, 8560496, 9171960, 10700620, 12840744, 16050930, 18343920, 21401240, 25681488, 32101860, 42802480, 64203720, 128407440]

約数ペア:

[(1, 128407440), (2, 64203720), (3, 42802480), (4, 32101860), (5, 25681488), (6, 21401240), (7, 18343920), (8, 16050930), (10, 12840744), (12, 10700620), (14, 9171960), (15, 8560496), (16, 8025465), (20, 6420372), (21, 6114640), (24, 5350310), (28, 4585980), (30, 4280248), (35, 3668784), (40, 3210186), (42, 3057320), (48, 2675155), (49, 2620560), (56, 2292990), (60, 2140124), (61, 2105040), (70, 1834392), (80, 1605093), (84, 1528660), (98, 1310280), (105, 1222928), (112, 1146495), (120, 1070062), (122, 1052520), (140, 917196), (147, 873520), (168, 764330), (179, 717360), (183, 701680), (196, 655140), (210, 611464), (240, 535031), (244, 526260), (245, 524112), (280, 458598), (294, 436760), (305, 421008), (336, 382165), (358, 358680), (366, 350840), (392, 327570), (420, 305732), (427, 300720), (488, 263130), (490, 262056), (537, 239120), (560, 229299), (588, 218380), (610, 210504), (716, 179340), (732, 175420), (735, 174704), (784, 163785), (840, 152866), (854, 150360), (895, 143472), (915, 140336), (976, 131565), (980, 131028), (1074, 119560), (1176, 109190), (1220, 105252), (1253, 102480), (1281, 100240), (1432, 89670), (1464, 87710), (1470, 87352), (1680, 76433), (1708, 75180), (1790, 71736), (1830, 70168), (1960, 65514), (2135, 60144), (2148, 59780), (2352, 54595), (2440, 52626), (2506, 51240), (2562, 50120), (2685, 47824), (2864, 44835), (2928, 43855), (2940, 43676), (2989, 42960), (3416, 37590), (3580, 35868), (3660, 35084), (3759, 34160), (3920, 32757), (4270, 30072), (4296, 29890), (4880, 26313), (5012, 25620), (5124, 25060), (5370, 23912), (5880, 21838), (5978, 21480), (6265, 20496), (6405, 20048), (6832, 18795), (7160, 17934), (7320, 17542), (7518, 17080), (8540, 15036), (8592, 14945), (8771, 14640), (8967, 14320), (10024, 12810), (10248, 12530), (10740, 11956), (10919, 11760)]