788007680

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 1964202240

約数和(自身を除く): 1176194560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 103, 128, 139, 160, 172, 206, 215, 256, 278, 320, 344, 412, 430, 515, 556, 640, 688, 695, 824, 860, 1030, 1112, 1280, 1376, 1390, 1648, 1720, 2060, 2224, 2752, 2780, 3296, 3440, 4120, 4429, 4448, 5504, 5560, 5977, 6592, 6880, 8240, 8858, 8896, 11008, 11120, 11954, 13184, 13760, 14317, 16480, 17716, 17792, 22145, 22240, 23908, 26368, 27520, 28634, 29885, 32960, 35432, 35584, 44290, 44480, 47816, 55040, 57268, 59770, 65920, 70864, 71585, 88580, 88960, 95632, 114536, 119540, 131840, 141728, 143170, 177160, 177920, 191264, 229072, 239080, 283456, 286340, 354320, 382528, 458144, 478160, 566912, 572680, 615631, 708640, 765056, 916288, 956320, 1133824, 1145360, 1231262, 1417280, 1530112, 1832576, 1912640, 2290720, 2462524, 2834560, 3078155, 3665152, 3825280, 4581440, 4925048, 5669120, 6156310, 7650560, 9162880, 9850096, 12312620, 18325760, 19700192, 24625240, 39400384, 49250480, 78800768, 98500960, 157601536, 197001920, 394003840, 788007680]

約数ペア:

[(1, 788007680), (2, 394003840), (4, 197001920), (5, 157601536), (8, 98500960), (10, 78800768), (16, 49250480), (20, 39400384), (32, 24625240), (40, 19700192), (43, 18325760), (64, 12312620), (80, 9850096), (86, 9162880), (103, 7650560), (128, 6156310), (139, 5669120), (160, 4925048), (172, 4581440), (206, 3825280), (215, 3665152), (256, 3078155), (278, 2834560), (320, 2462524), (344, 2290720), (412, 1912640), (430, 1832576), (515, 1530112), (556, 1417280), (640, 1231262), (688, 1145360), (695, 1133824), (824, 956320), (860, 916288), (1030, 765056), (1112, 708640), (1280, 615631), (1376, 572680), (1390, 566912), (1648, 478160), (1720, 458144), (2060, 382528), (2224, 354320), (2752, 286340), (2780, 283456), (3296, 239080), (3440, 229072), (4120, 191264), (4429, 177920), (4448, 177160), (5504, 143170), (5560, 141728), (5977, 131840), (6592, 119540), (6880, 114536), (8240, 95632), (8858, 88960), (8896, 88580), (11008, 71585), (11120, 70864), (11954, 65920), (13184, 59770), (13760, 57268), (14317, 55040), (16480, 47816), (17716, 44480), (17792, 44290), (22145, 35584), (22240, 35432), (23908, 32960), (26368, 29885), (27520, 28634)]