221809280

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:687

約数の個数: 192

約数和(自身を含む): 673958880

約数和(自身を除く): 452149600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 128, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 320, 352, 385, 392, 440, 448, 490, 539, 560, 616, 640, 643, 704, 770, 784, 880, 896, 980, 1078, 1120, 1232, 1286, 1408, 1540, 1568, 1760, 1960, 2156, 2240, 2464, 2572, 2695, 3080, 3136, 3215, 3520, 3920, 4312, 4480, 4501, 4928, 5144, 5390, 6160, 6272, 6430, 7040, 7073, 7840, 8624, 9002, 9856, 10288, 10780, 12320, 12860, 14146, 15680, 17248, 18004, 20576, 21560, 22505, 24640, 25720, 28292, 31360, 31507, 34496, 35365, 36008, 41152, 43120, 45010, 49280, 49511, 51440, 56584, 63014, 68992, 70730, 72016, 82304, 86240, 90020, 99022, 102880, 113168, 126028, 141460, 144032, 157535, 172480, 180040, 198044, 205760, 226336, 247555, 252056, 282920, 288064, 315070, 344960, 346577, 360080, 396088, 411520, 452672, 495110, 504112, 565840, 576128, 630140, 693154, 720160, 792176, 905344, 990220, 1008224, 1131680, 1260280, 1386308, 1440320, 1584352, 1732885, 1980440, 2016448, 2263360, 2520560, 2772616, 2880640, 3168704, 3465770, 3960880, 4032896, 4526720, 5041120, 5545232, 6337408, 6931540, 7921760, 10082240, 11090464, 13863080, 15843520, 20164480, 22180928, 27726160, 31687040, 44361856, 55452320, 110904640, 221809280]

約数ペア:

[(1, 221809280), (2, 110904640), (4, 55452320), (5, 44361856), (7, 31687040), (8, 27726160), (10, 22180928), (11, 20164480), (14, 15843520), (16, 13863080), (20, 11090464), (22, 10082240), (28, 7921760), (32, 6931540), (35, 6337408), (40, 5545232), (44, 5041120), (49, 4526720), (55, 4032896), (56, 3960880), (64, 3465770), (70, 3168704), (77, 2880640), (80, 2772616), (88, 2520560), (98, 2263360), (110, 2016448), (112, 1980440), (128, 1732885), (140, 1584352), (154, 1440320), (160, 1386308), (176, 1260280), (196, 1131680), (220, 1008224), (224, 990220), (245, 905344), (280, 792176), (308, 720160), (320, 693154), (352, 630140), (385, 576128), (392, 565840), (440, 504112), (448, 495110), (490, 452672), (539, 411520), (560, 396088), (616, 360080), (640, 346577), (643, 344960), (704, 315070), (770, 288064), (784, 282920), (880, 252056), (896, 247555), (980, 226336), (1078, 205760), (1120, 198044), (1232, 180040), (1286, 172480), (1408, 157535), (1540, 144032), (1568, 141460), (1760, 126028), (1960, 113168), (2156, 102880), (2240, 99022), (2464, 90020), (2572, 86240), (2695, 82304), (3080, 72016), (3136, 70730), (3215, 68992), (3520, 63014), (3920, 56584), (4312, 51440), (4480, 49511), (4501, 49280), (4928, 45010), (5144, 43120), (5390, 41152), (6160, 36008), (6272, 35365), (6430, 34496), (7040, 31507), (7073, 31360), (7840, 28292), (8624, 25720), (9002, 24640), (9856, 22505), (10288, 21560), (10780, 20576), (12320, 18004), (12860, 17248), (14146, 15680)]