261809280

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 256

約数和(自身を含む): 942480000

約数和(自身を除く): 680670720

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, 64, 72, 80, 90, 96, 108, 109, 120, 128, 135, 139, 144, 160, 180, 192, 216, 218, 240, 270, 278, 288, 320, 327, 360, 384, 417, 432, 436, 480, 540, 545, 556, 576, 640, 654, 695, 720, 834, 864, 872, 960, 981, 1080, 1090, 1112, 1152, 1251, 1308, 1390, 1440, 1635, 1668, 1728, 1744, 1920, 1962, 2085, 2160, 2180, 2224, 2502, 2616, 2780, 2880, 2943, 3270, 3336, 3456, 3488, 3753, 3924, 4170, 4320, 4360, 4448, 4905, 5004, 5232, 5560, 5760, 5886, 6255, 6540, 6672, 6976, 7506, 7848, 8340, 8640, 8720, 8896, 9810, 10008, 10464, 11120, 11772, 12510, 13080, 13344, 13952, 14715, 15012, 15151, 15696, 16680, 17280, 17440, 17792, 18765, 19620, 20016, 20928, 22240, 23544, 25020, 26160, 26688, 29430, 30024, 30302, 31392, 33360, 34880, 37530, 39240, 40032, 41856, 44480, 45453, 47088, 50040, 52320, 53376, 58860, 60048, 60604, 62784, 66720, 69760, 75060, 75755, 78480, 80064, 88960, 90906, 94176, 100080, 104640, 117720, 120096, 121208, 125568, 133440, 136359, 150120, 151510, 156960, 160128, 181812, 188352, 200160, 209280, 227265, 235440, 240192, 242416, 266880, 272718, 300240, 303020, 313920, 363624, 376704, 400320, 409077, 454530, 470880, 480384, 484832, 545436, 600480, 606040, 627840, 681795, 727248, 800640, 818154, 909060, 941760, 969664, 1090872, 1200960, 1212080, 1363590, 1454496, 1636308, 1818120, 1883520, 1939328, 2045385, 2181744, 2401920, 2424160, 2727180, 2908992, 3272616, 3636240, 4090770, 4363488, 4848320, 5454360, 5817984, 6545232, 7272480, 8181540, 8726976, 9696640, 10908720, 13090464, 14544960, 16363080, 17453952, 21817440, 26180928, 29089920, 32726160, 43634880, 52361856, 65452320, 87269760, 130904640, 261809280]

約数ペア:

[(1, 261809280), (2, 130904640), (3, 87269760), (4, 65452320), (5, 52361856), (6, 43634880), (8, 32726160), (9, 29089920), (10, 26180928), (12, 21817440), (15, 17453952), (16, 16363080), (18, 14544960), (20, 13090464), (24, 10908720), (27, 9696640), (30, 8726976), (32, 8181540), (36, 7272480), (40, 6545232), (45, 5817984), (48, 5454360), (54, 4848320), (60, 4363488), (64, 4090770), (72, 3636240), (80, 3272616), (90, 2908992), (96, 2727180), (108, 2424160), (109, 2401920), (120, 2181744), (128, 2045385), (135, 1939328), (139, 1883520), (144, 1818120), (160, 1636308), (180, 1454496), (192, 1363590), (216, 1212080), (218, 1200960), (240, 1090872), (270, 969664), (278, 941760), (288, 909060), (320, 818154), (327, 800640), (360, 727248), (384, 681795), (417, 627840), (432, 606040), (436, 600480), (480, 545436), (540, 484832), (545, 480384), (556, 470880), (576, 454530), (640, 409077), (654, 400320), (695, 376704), (720, 363624), (834, 313920), (864, 303020), (872, 300240), (960, 272718), (981, 266880), (1080, 242416), (1090, 240192), (1112, 235440), (1152, 227265), (1251, 209280), (1308, 200160), (1390, 188352), (1440, 181812), (1635, 160128), (1668, 156960), (1728, 151510), (1744, 150120), (1920, 136359), (1962, 133440), (2085, 125568), (2160, 121208), (2180, 120096), (2224, 117720), (2502, 104640), (2616, 100080), (2780, 94176), (2880, 90906), (2943, 88960), (3270, 80064), (3336, 78480), (3456, 75755), (3488, 75060), (3753, 69760), (3924, 66720), (4170, 62784), (4320, 60604), (4360, 60048), (4448, 58860), (4905, 53376), (5004, 52320), (5232, 50040), (5560, 47088), (5760, 45453), (5886, 44480), (6255, 41856), (6540, 40032), (6672, 39240), (6976, 37530), (7506, 34880), (7848, 33360), (8340, 31392), (8640, 30302), (8720, 30024), (8896, 29430), (9810, 26688), (10008, 26160), (10464, 25020), (11120, 23544), (11772, 22240), (12510, 20928), (13080, 20016), (13344, 19620), (13952, 18765), (14715, 17792), (15012, 17440), (15151, 17280), (15696, 16680)]