640867680

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1361}}^1$

素因数の和:1494

約数の個数: 192

約数和(自身を含む): 2265278400

約数和(自身を除く): 1624410720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 109, 120, 135, 144, 160, 180, 216, 218, 240, 270, 288, 327, 360, 432, 436, 480, 540, 545, 654, 720, 864, 872, 981, 1080, 1090, 1308, 1361, 1440, 1635, 1744, 1962, 2160, 2180, 2616, 2722, 2943, 3270, 3488, 3924, 4083, 4320, 4360, 4905, 5232, 5444, 5886, 6540, 6805, 7848, 8166, 8720, 9810, 10464, 10888, 11772, 12249, 13080, 13610, 14715, 15696, 16332, 17440, 19620, 20415, 21776, 23544, 24498, 26160, 27220, 29430, 31392, 32664, 36747, 39240, 40830, 43552, 47088, 48996, 52320, 54440, 58860, 61245, 65328, 73494, 78480, 81660, 94176, 97992, 108880, 117720, 122490, 130656, 146988, 148349, 156960, 163320, 183735, 195984, 217760, 235440, 244980, 293976, 296698, 326640, 367470, 391968, 445047, 470880, 489960, 587952, 593396, 653280, 734940, 741745, 890094, 979920, 1175904, 1186792, 1335141, 1469880, 1483490, 1780188, 1959840, 2225235, 2373584, 2670282, 2939760, 2966980, 3560376, 4005423, 4450470, 4747168, 5340564, 5879520, 5933960, 6675705, 7120752, 8010846, 8900940, 10681128, 11867920, 13351410, 14241504, 16021692, 17801880, 20027115, 21362256, 23735840, 26702820, 32043384, 35603760, 40054230, 42724512, 53405640, 64086768, 71207520, 80108460, 106811280, 128173536, 160216920, 213622560, 320433840, 640867680]

約数ペア:

[(1, 640867680), (2, 320433840), (3, 213622560), (4, 160216920), (5, 128173536), (6, 106811280), (8, 80108460), (9, 71207520), (10, 64086768), (12, 53405640), (15, 42724512), (16, 40054230), (18, 35603760), (20, 32043384), (24, 26702820), (27, 23735840), (30, 21362256), (32, 20027115), (36, 17801880), (40, 16021692), (45, 14241504), (48, 13351410), (54, 11867920), (60, 10681128), (72, 8900940), (80, 8010846), (90, 7120752), (96, 6675705), (108, 5933960), (109, 5879520), (120, 5340564), (135, 4747168), (144, 4450470), (160, 4005423), (180, 3560376), (216, 2966980), (218, 2939760), (240, 2670282), (270, 2373584), (288, 2225235), (327, 1959840), (360, 1780188), (432, 1483490), (436, 1469880), (480, 1335141), (540, 1186792), (545, 1175904), (654, 979920), (720, 890094), (864, 741745), (872, 734940), (981, 653280), (1080, 593396), (1090, 587952), (1308, 489960), (1361, 470880), (1440, 445047), (1635, 391968), (1744, 367470), (1962, 326640), (2160, 296698), (2180, 293976), (2616, 244980), (2722, 235440), (2943, 217760), (3270, 195984), (3488, 183735), (3924, 163320), (4083, 156960), (4320, 148349), (4360, 146988), (4905, 130656), (5232, 122490), (5444, 117720), (5886, 108880), (6540, 97992), (6805, 94176), (7848, 81660), (8166, 78480), (8720, 73494), (9810, 65328), (10464, 61245), (10888, 58860), (11772, 54440), (12249, 52320), (13080, 48996), (13610, 47088), (14715, 43552), (15696, 40830), (16332, 39240), (17440, 36747), (19620, 32664), (20415, 31392), (21776, 29430), (23544, 27220), (24498, 26160)]