396327680

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 216

約数和(自身を含む): 1132457760

約数和(自身を除く): 736130080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 71, 80, 89, 98, 112, 128, 140, 142, 160, 178, 196, 224, 245, 256, 280, 284, 320, 355, 356, 392, 445, 448, 490, 497, 560, 568, 623, 640, 710, 712, 784, 890, 896, 980, 994, 1120, 1136, 1246, 1280, 1420, 1424, 1568, 1780, 1792, 1960, 1988, 2240, 2272, 2485, 2492, 2840, 2848, 3115, 3136, 3479, 3560, 3920, 3976, 4361, 4480, 4544, 4970, 4984, 5680, 5696, 6230, 6272, 6319, 6958, 7120, 7840, 7952, 8722, 8960, 9088, 9940, 9968, 11360, 11392, 12460, 12544, 12638, 13916, 14240, 15680, 15904, 17395, 17444, 18176, 19880, 19936, 21805, 22720, 22784, 24920, 25276, 27832, 28480, 31360, 31595, 31808, 34790, 34888, 39760, 39872, 43610, 44233, 45440, 49840, 50552, 55664, 56960, 62720, 63190, 63616, 69580, 69776, 79520, 79744, 87220, 88466, 90880, 99680, 101104, 111328, 113920, 126380, 127232, 139160, 139552, 159040, 159488, 174440, 176932, 199360, 202208, 221165, 222656, 252760, 278320, 279104, 309631, 318080, 348880, 353864, 398720, 404416, 442330, 445312, 505520, 556640, 558208, 619262, 636160, 697760, 707728, 797440, 808832, 884660, 890624, 1011040, 1113280, 1116416, 1238524, 1395520, 1415456, 1548155, 1617664, 1769320, 2022080, 2226560, 2477048, 2791040, 2830912, 3096310, 3538640, 4044160, 4453120, 4954096, 5582080, 5661824, 6192620, 7077280, 8088320, 9908192, 11323648, 12385240, 14154560, 19816384, 24770480, 28309120, 39632768, 49540960, 56618240, 79265536, 99081920, 198163840, 396327680]

約数ペア:

[(1, 396327680), (2, 198163840), (4, 99081920), (5, 79265536), (7, 56618240), (8, 49540960), (10, 39632768), (14, 28309120), (16, 24770480), (20, 19816384), (28, 14154560), (32, 12385240), (35, 11323648), (40, 9908192), (49, 8088320), (56, 7077280), (64, 6192620), (70, 5661824), (71, 5582080), (80, 4954096), (89, 4453120), (98, 4044160), (112, 3538640), (128, 3096310), (140, 2830912), (142, 2791040), (160, 2477048), (178, 2226560), (196, 2022080), (224, 1769320), (245, 1617664), (256, 1548155), (280, 1415456), (284, 1395520), (320, 1238524), (355, 1116416), (356, 1113280), (392, 1011040), (445, 890624), (448, 884660), (490, 808832), (497, 797440), (560, 707728), (568, 697760), (623, 636160), (640, 619262), (710, 558208), (712, 556640), (784, 505520), (890, 445312), (896, 442330), (980, 404416), (994, 398720), (1120, 353864), (1136, 348880), (1246, 318080), (1280, 309631), (1420, 279104), (1424, 278320), (1568, 252760), (1780, 222656), (1792, 221165), (1960, 202208), (1988, 199360), (2240, 176932), (2272, 174440), (2485, 159488), (2492, 159040), (2840, 139552), (2848, 139160), (3115, 127232), (3136, 126380), (3479, 113920), (3560, 111328), (3920, 101104), (3976, 99680), (4361, 90880), (4480, 88466), (4544, 87220), (4970, 79744), (4984, 79520), (5680, 69776), (5696, 69580), (6230, 63616), (6272, 63190), (6319, 62720), (6958, 56960), (7120, 55664), (7840, 50552), (7952, 49840), (8722, 45440), (8960, 44233), (9088, 43610), (9940, 39872), (9968, 39760), (11360, 34888), (11392, 34790), (12460, 31808), (12544, 31595), (12638, 31360), (13916, 28480), (14240, 27832), (15680, 25276), (15904, 24920), (17395, 22784), (17444, 22720), (18176, 21805), (19880, 19936)]