399498240

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:898

約数の個数: 176

約数和(自身を含む): 1320560640

約数和(自身を除く): 921062400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 512, 620, 640, 744, 768, 839, 930, 960, 992, 1024, 1240, 1280, 1488, 1536, 1678, 1860, 1920, 1984, 2480, 2517, 2560, 2976, 3072, 3356, 3720, 3840, 3968, 4195, 4960, 5034, 5120, 5952, 6712, 7440, 7680, 7936, 8390, 9920, 10068, 11904, 12585, 13424, 14880, 15360, 15872, 16780, 19840, 20136, 23808, 25170, 26009, 26848, 29760, 31744, 33560, 39680, 40272, 47616, 50340, 52018, 53696, 59520, 67120, 78027, 79360, 80544, 95232, 100680, 104036, 107392, 119040, 130045, 134240, 156054, 158720, 161088, 201360, 208072, 214784, 238080, 260090, 268480, 312108, 322176, 390135, 402720, 416144, 429568, 476160, 520180, 536960, 624216, 644352, 780270, 805440, 832288, 859136, 1040360, 1073920, 1248432, 1288704, 1560540, 1610880, 1664576, 2080720, 2147840, 2496864, 2577408, 3121080, 3221760, 3329152, 4161440, 4295680, 4993728, 6242160, 6443520, 6658304, 8322880, 9987456, 12484320, 12887040, 13316608, 16645760, 19974912, 24968640, 26633216, 33291520, 39949824, 49937280, 66583040, 79899648, 99874560, 133166080, 199749120, 399498240]

約数ペア:

[(1, 399498240), (2, 199749120), (3, 133166080), (4, 99874560), (5, 79899648), (6, 66583040), (8, 49937280), (10, 39949824), (12, 33291520), (15, 26633216), (16, 24968640), (20, 19974912), (24, 16645760), (30, 13316608), (31, 12887040), (32, 12484320), (40, 9987456), (48, 8322880), (60, 6658304), (62, 6443520), (64, 6242160), (80, 4993728), (93, 4295680), (96, 4161440), (120, 3329152), (124, 3221760), (128, 3121080), (155, 2577408), (160, 2496864), (186, 2147840), (192, 2080720), (240, 1664576), (248, 1610880), (256, 1560540), (310, 1288704), (320, 1248432), (372, 1073920), (384, 1040360), (465, 859136), (480, 832288), (496, 805440), (512, 780270), (620, 644352), (640, 624216), (744, 536960), (768, 520180), (839, 476160), (930, 429568), (960, 416144), (992, 402720), (1024, 390135), (1240, 322176), (1280, 312108), (1488, 268480), (1536, 260090), (1678, 238080), (1860, 214784), (1920, 208072), (1984, 201360), (2480, 161088), (2517, 158720), (2560, 156054), (2976, 134240), (3072, 130045), (3356, 119040), (3720, 107392), (3840, 104036), (3968, 100680), (4195, 95232), (4960, 80544), (5034, 79360), (5120, 78027), (5952, 67120), (6712, 59520), (7440, 53696), (7680, 52018), (7936, 50340), (8390, 47616), (9920, 40272), (10068, 39680), (11904, 33560), (12585, 31744), (13424, 29760), (14880, 26848), (15360, 26009), (15872, 25170), (16780, 23808), (19840, 20136)]