19776960

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 280

約数和(自身を含む): 81137760

約数和(自身を除く): 61360800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 109, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 218, 224, 240, 252, 270, 280, 288, 315, 320, 324, 327, 336, 360, 378, 405, 420, 432, 436, 448, 480, 504, 540, 545, 560, 567, 576, 630, 648, 654, 672, 720, 756, 763, 810, 840, 864, 872, 945, 960, 981, 1008, 1080, 1090, 1120, 1134, 1260, 1296, 1308, 1344, 1440, 1512, 1526, 1620, 1635, 1680, 1728, 1744, 1890, 1962, 2016, 2160, 2180, 2240, 2268, 2289, 2520, 2592, 2616, 2835, 2880, 2943, 3024, 3052, 3240, 3270, 3360, 3488, 3780, 3815, 3924, 4032, 4320, 4360, 4536, 4578, 4905, 5040, 5184, 5232, 5670, 5886, 6048, 6104, 6480, 6540, 6720, 6867, 6976, 7560, 7630, 7848, 8640, 8720, 8829, 9072, 9156, 9810, 10080, 10464, 11340, 11445, 11772, 12096, 12208, 12960, 13080, 13734, 14715, 15120, 15260, 15696, 17440, 17658, 18144, 18312, 19620, 20160, 20601, 20928, 22680, 22890, 23544, 24416, 25920, 26160, 27468, 29430, 30240, 30520, 31392, 34335, 34880, 35316, 36288, 36624, 39240, 41202, 44145, 45360, 45780, 47088, 48832, 52320, 54936, 58860, 60480, 61040, 61803, 62784, 68670, 70632, 73248, 78480, 82404, 88290, 90720, 91560, 94176, 103005, 104640, 109872, 117720, 122080, 123606, 137340, 141264, 146496, 156960, 164808, 176580, 181440, 183120, 188352, 206010, 219744, 235440, 244160, 247212, 274680, 282528, 309015, 313920, 329616, 353160, 366240, 412020, 439488, 470880, 494424, 549360, 565056, 618030, 659232, 706320, 732480, 824040, 941760, 988848, 1098720, 1236060, 1318464, 1412640, 1648080, 1977696, 2197440, 2472120, 2825280, 3296160, 3955392, 4944240, 6592320, 9888480, 19776960]

約数ペア:

[(1, 19776960), (2, 9888480), (3, 6592320), (4, 4944240), (5, 3955392), (6, 3296160), (7, 2825280), (8, 2472120), (9, 2197440), (10, 1977696), (12, 1648080), (14, 1412640), (15, 1318464), (16, 1236060), (18, 1098720), (20, 988848), (21, 941760), (24, 824040), (27, 732480), (28, 706320), (30, 659232), (32, 618030), (35, 565056), (36, 549360), (40, 494424), (42, 470880), (45, 439488), (48, 412020), (54, 366240), (56, 353160), (60, 329616), (63, 313920), (64, 309015), (70, 282528), (72, 274680), (80, 247212), (81, 244160), (84, 235440), (90, 219744), (96, 206010), (105, 188352), (108, 183120), (109, 181440), (112, 176580), (120, 164808), (126, 156960), (135, 146496), (140, 141264), (144, 137340), (160, 123606), (162, 122080), (168, 117720), (180, 109872), (189, 104640), (192, 103005), (210, 94176), (216, 91560), (218, 90720), (224, 88290), (240, 82404), (252, 78480), (270, 73248), (280, 70632), (288, 68670), (315, 62784), (320, 61803), (324, 61040), (327, 60480), (336, 58860), (360, 54936), (378, 52320), (405, 48832), (420, 47088), (432, 45780), (436, 45360), (448, 44145), (480, 41202), (504, 39240), (540, 36624), (545, 36288), (560, 35316), (567, 34880), (576, 34335), (630, 31392), (648, 30520), (654, 30240), (672, 29430), (720, 27468), (756, 26160), (763, 25920), (810, 24416), (840, 23544), (864, 22890), (872, 22680), (945, 20928), (960, 20601), (981, 20160), (1008, 19620), (1080, 18312), (1090, 18144), (1120, 17658), (1134, 17440), (1260, 15696), (1296, 15260), (1308, 15120), (1344, 14715), (1440, 13734), (1512, 13080), (1526, 12960), (1620, 12208), (1635, 12096), (1680, 11772), (1728, 11445), (1744, 11340), (1890, 10464), (1962, 10080), (2016, 9810), (2160, 9156), (2180, 9072), (2240, 8829), (2268, 8720), (2289, 8640), (2520, 7848), (2592, 7630), (2616, 7560), (2835, 6976), (2880, 6867), (2943, 6720), (3024, 6540), (3052, 6480), (3240, 6104), (3270, 6048), (3360, 5886), (3488, 5670), (3780, 5232), (3815, 5184), (3924, 5040), (4032, 4905), (4320, 4578), (4360, 4536)]