256525440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 256

約数和(自身を含む): 881867520

約数和(自身を除く): 625342080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 37, 40, 46, 48, 60, 64, 69, 74, 80, 92, 96, 111, 115, 120, 128, 138, 148, 157, 160, 184, 185, 192, 222, 230, 240, 276, 296, 314, 320, 345, 368, 370, 384, 444, 460, 471, 480, 552, 555, 592, 628, 640, 690, 736, 740, 785, 851, 888, 920, 942, 960, 1104, 1110, 1184, 1256, 1380, 1472, 1480, 1570, 1702, 1776, 1840, 1884, 1920, 2208, 2220, 2355, 2368, 2512, 2553, 2760, 2944, 2960, 3140, 3404, 3552, 3611, 3680, 3768, 4255, 4416, 4440, 4710, 4736, 5024, 5106, 5520, 5809, 5920, 6280, 6808, 7104, 7222, 7360, 7536, 8510, 8832, 8880, 9420, 10048, 10212, 10833, 11040, 11618, 11840, 12560, 12765, 13616, 14208, 14444, 14720, 15072, 17020, 17427, 17760, 18055, 18840, 20096, 20424, 21666, 22080, 23236, 23680, 25120, 25530, 27232, 28888, 29045, 30144, 34040, 34854, 35520, 36110, 37680, 40848, 43332, 44160, 46472, 50240, 51060, 54165, 54464, 57776, 58090, 60288, 68080, 69708, 71040, 72220, 75360, 81696, 86664, 87135, 92944, 100480, 102120, 108330, 108928, 115552, 116180, 133607, 136160, 139416, 144440, 150720, 163392, 173328, 174270, 185888, 204240, 216660, 231104, 232360, 267214, 272320, 278832, 288880, 301440, 326784, 346656, 348540, 371776, 400821, 408480, 433320, 462208, 464720, 534428, 544640, 557664, 577760, 668035, 693312, 697080, 743552, 801642, 816960, 866640, 929440, 1068856, 1115328, 1155520, 1336070, 1386624, 1394160, 1603284, 1633920, 1733280, 1858880, 2004105, 2137712, 2230656, 2311040, 2672140, 2788320, 3206568, 3466560, 3717760, 4008210, 4275424, 5344280, 5576640, 6413136, 6933120, 8016420, 8550848, 10688560, 11153280, 12826272, 16032840, 17101696, 21377120, 25652544, 32065680, 42754240, 51305088, 64131360, 85508480, 128262720, 256525440]

約数ペア:

[(1, 256525440), (2, 128262720), (3, 85508480), (4, 64131360), (5, 51305088), (6, 42754240), (8, 32065680), (10, 25652544), (12, 21377120), (15, 17101696), (16, 16032840), (20, 12826272), (23, 11153280), (24, 10688560), (30, 8550848), (32, 8016420), (37, 6933120), (40, 6413136), (46, 5576640), (48, 5344280), (60, 4275424), (64, 4008210), (69, 3717760), (74, 3466560), (80, 3206568), (92, 2788320), (96, 2672140), (111, 2311040), (115, 2230656), (120, 2137712), (128, 2004105), (138, 1858880), (148, 1733280), (157, 1633920), (160, 1603284), (184, 1394160), (185, 1386624), (192, 1336070), (222, 1155520), (230, 1115328), (240, 1068856), (276, 929440), (296, 866640), (314, 816960), (320, 801642), (345, 743552), (368, 697080), (370, 693312), (384, 668035), (444, 577760), (460, 557664), (471, 544640), (480, 534428), (552, 464720), (555, 462208), (592, 433320), (628, 408480), (640, 400821), (690, 371776), (736, 348540), (740, 346656), (785, 326784), (851, 301440), (888, 288880), (920, 278832), (942, 272320), (960, 267214), (1104, 232360), (1110, 231104), (1184, 216660), (1256, 204240), (1380, 185888), (1472, 174270), (1480, 173328), (1570, 163392), (1702, 150720), (1776, 144440), (1840, 139416), (1884, 136160), (1920, 133607), (2208, 116180), (2220, 115552), (2355, 108928), (2368, 108330), (2512, 102120), (2553, 100480), (2760, 92944), (2944, 87135), (2960, 86664), (3140, 81696), (3404, 75360), (3552, 72220), (3611, 71040), (3680, 69708), (3768, 68080), (4255, 60288), (4416, 58090), (4440, 57776), (4710, 54464), (4736, 54165), (5024, 51060), (5106, 50240), (5520, 46472), (5809, 44160), (5920, 43332), (6280, 40848), (6808, 37680), (7104, 36110), (7222, 35520), (7360, 34854), (7536, 34040), (8510, 30144), (8832, 29045), (8880, 28888), (9420, 27232), (10048, 25530), (10212, 25120), (10833, 23680), (11040, 23236), (11618, 22080), (11840, 21666), (12560, 20424), (12765, 20096), (13616, 18840), (14208, 18055), (14444, 17760), (14720, 17427), (15072, 17020)]