131489280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:481

約数の個数: 240

約数和(自身を含む): 491531040

約数和(自身を除く): 360041760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 439, 468, 480, 512, 520, 576, 585, 624, 640, 720, 768, 780, 832, 878, 936, 960, 1040, 1152, 1170, 1248, 1280, 1317, 1440, 1536, 1560, 1664, 1756, 1872, 1920, 2080, 2195, 2304, 2340, 2496, 2560, 2634, 2880, 3120, 3328, 3512, 3744, 3840, 3951, 4160, 4390, 4608, 4680, 4992, 5268, 5707, 5760, 6240, 6585, 6656, 7024, 7488, 7680, 7902, 8320, 8780, 9360, 9984, 10536, 11414, 11520, 12480, 13170, 14048, 14976, 15804, 16640, 17121, 17560, 18720, 19755, 19968, 21072, 22828, 23040, 24960, 26340, 28096, 28535, 29952, 31608, 33280, 34242, 35120, 37440, 39510, 42144, 45656, 49920, 51363, 52680, 56192, 57070, 59904, 63216, 68484, 70240, 74880, 79020, 84288, 85605, 91312, 99840, 102726, 105360, 112384, 114140, 126432, 136968, 140480, 149760, 158040, 168576, 171210, 182624, 205452, 210720, 224768, 228280, 252864, 256815, 273936, 280960, 299520, 316080, 337152, 342420, 365248, 410904, 421440, 456560, 505728, 513630, 547872, 561920, 632160, 674304, 684840, 730496, 821808, 842880, 913120, 1011456, 1027260, 1095744, 1123840, 1264320, 1369680, 1460992, 1643616, 1685760, 1826240, 2022912, 2054520, 2191488, 2528640, 2739360, 2921984, 3287232, 3371520, 3652480, 4109040, 4382976, 5057280, 5478720, 6574464, 7304960, 8218080, 8765952, 10114560, 10957440, 13148928, 14609920, 16436160, 21914880, 26297856, 32872320, 43829760, 65744640, 131489280]

約数ペア:

[(1, 131489280), (2, 65744640), (3, 43829760), (4, 32872320), (5, 26297856), (6, 21914880), (8, 16436160), (9, 14609920), (10, 13148928), (12, 10957440), (13, 10114560), (15, 8765952), (16, 8218080), (18, 7304960), (20, 6574464), (24, 5478720), (26, 5057280), (30, 4382976), (32, 4109040), (36, 3652480), (39, 3371520), (40, 3287232), (45, 2921984), (48, 2739360), (52, 2528640), (60, 2191488), (64, 2054520), (65, 2022912), (72, 1826240), (78, 1685760), (80, 1643616), (90, 1460992), (96, 1369680), (104, 1264320), (117, 1123840), (120, 1095744), (128, 1027260), (130, 1011456), (144, 913120), (156, 842880), (160, 821808), (180, 730496), (192, 684840), (195, 674304), (208, 632160), (234, 561920), (240, 547872), (256, 513630), (260, 505728), (288, 456560), (312, 421440), (320, 410904), (360, 365248), (384, 342420), (390, 337152), (416, 316080), (439, 299520), (468, 280960), (480, 273936), (512, 256815), (520, 252864), (576, 228280), (585, 224768), (624, 210720), (640, 205452), (720, 182624), (768, 171210), (780, 168576), (832, 158040), (878, 149760), (936, 140480), (960, 136968), (1040, 126432), (1152, 114140), (1170, 112384), (1248, 105360), (1280, 102726), (1317, 99840), (1440, 91312), (1536, 85605), (1560, 84288), (1664, 79020), (1756, 74880), (1872, 70240), (1920, 68484), (2080, 63216), (2195, 59904), (2304, 57070), (2340, 56192), (2496, 52680), (2560, 51363), (2634, 49920), (2880, 45656), (3120, 42144), (3328, 39510), (3512, 37440), (3744, 35120), (3840, 34242), (3951, 33280), (4160, 31608), (4390, 29952), (4608, 28535), (4680, 28096), (4992, 26340), (5268, 24960), (5707, 23040), (5760, 22828), (6240, 21072), (6585, 19968), (6656, 19755), (7024, 18720), (7488, 17560), (7680, 17121), (7902, 16640), (8320, 15804), (8780, 14976), (9360, 14048), (9984, 13170), (10536, 12480), (11414, 11520)]