399959040

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2044

約数の個数: 176

約数和(自身を含む): 1378335168

約数和(自身を除く): 978376128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 768, 780, 832, 960, 1024, 1040, 1248, 1280, 1536, 1560, 1664, 1920, 2003, 2080, 2496, 2560, 3072, 3120, 3328, 3840, 4006, 4160, 4992, 5120, 6009, 6240, 6656, 7680, 8012, 8320, 9984, 10015, 12018, 12480, 13312, 15360, 16024, 16640, 19968, 20030, 24036, 24960, 26039, 30045, 32048, 33280, 39936, 40060, 48072, 49920, 52078, 60090, 64096, 66560, 78117, 80120, 96144, 99840, 104156, 120180, 128192, 130195, 156234, 160240, 192288, 199680, 208312, 240360, 256384, 260390, 312468, 320480, 384576, 390585, 416624, 480720, 512768, 520780, 624936, 640960, 769152, 781170, 833248, 961440, 1025536, 1041560, 1249872, 1281920, 1538304, 1562340, 1666496, 1922880, 2051072, 2083120, 2499744, 2563840, 3076608, 3124680, 3332992, 3845760, 4166240, 4999488, 5127680, 6153216, 6249360, 6665984, 7691520, 8332480, 9998976, 10255360, 12498720, 13331968, 15383040, 16664960, 19997952, 24997440, 26663936, 30766080, 33329920, 39995904, 49994880, 66659840, 79991808, 99989760, 133319680, 199979520, 399959040]

約数ペア:

[(1, 399959040), (2, 199979520), (3, 133319680), (4, 99989760), (5, 79991808), (6, 66659840), (8, 49994880), (10, 39995904), (12, 33329920), (13, 30766080), (15, 26663936), (16, 24997440), (20, 19997952), (24, 16664960), (26, 15383040), (30, 13331968), (32, 12498720), (39, 10255360), (40, 9998976), (48, 8332480), (52, 7691520), (60, 6665984), (64, 6249360), (65, 6153216), (78, 5127680), (80, 4999488), (96, 4166240), (104, 3845760), (120, 3332992), (128, 3124680), (130, 3076608), (156, 2563840), (160, 2499744), (192, 2083120), (195, 2051072), (208, 1922880), (240, 1666496), (256, 1562340), (260, 1538304), (312, 1281920), (320, 1249872), (384, 1041560), (390, 1025536), (416, 961440), (480, 833248), (512, 781170), (520, 769152), (624, 640960), (640, 624936), (768, 520780), (780, 512768), (832, 480720), (960, 416624), (1024, 390585), (1040, 384576), (1248, 320480), (1280, 312468), (1536, 260390), (1560, 256384), (1664, 240360), (1920, 208312), (2003, 199680), (2080, 192288), (2496, 160240), (2560, 156234), (3072, 130195), (3120, 128192), (3328, 120180), (3840, 104156), (4006, 99840), (4160, 96144), (4992, 80120), (5120, 78117), (6009, 66560), (6240, 64096), (6656, 60090), (7680, 52078), (8012, 49920), (8320, 48072), (9984, 40060), (10015, 39936), (12018, 33280), (12480, 32048), (13312, 30045), (15360, 26039), (16024, 24960), (16640, 24036), (19968, 20030)]