128168320

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:161

約数の個数: 192

約数和(自身を含む): 367677360

約数和(自身を除く): 239509040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 64, 67, 70, 80, 98, 112, 122, 128, 134, 140, 160, 196, 224, 244, 245, 268, 280, 305, 320, 335, 392, 427, 448, 469, 488, 490, 536, 560, 610, 640, 670, 784, 854, 896, 938, 976, 980, 1072, 1120, 1220, 1340, 1568, 1708, 1876, 1952, 1960, 2135, 2144, 2240, 2345, 2440, 2680, 2989, 3136, 3283, 3416, 3752, 3904, 3920, 4087, 4270, 4288, 4480, 4690, 4880, 5360, 5978, 6272, 6566, 6832, 7504, 7808, 7840, 8174, 8540, 8576, 9380, 9760, 10720, 11956, 13132, 13664, 14945, 15008, 15680, 16348, 16415, 17080, 18760, 19520, 20435, 21440, 23912, 26264, 27328, 28609, 29890, 30016, 31360, 32696, 32830, 34160, 37520, 39040, 40870, 42880, 47824, 52528, 54656, 57218, 59780, 60032, 65392, 65660, 68320, 75040, 81740, 95648, 105056, 114436, 119560, 130784, 131320, 136640, 143045, 150080, 163480, 191296, 200263, 210112, 228872, 239120, 261568, 262640, 273280, 286090, 300160, 326960, 382592, 400526, 420224, 457744, 478240, 523136, 525280, 572180, 653920, 801052, 915488, 956480, 1001315, 1050560, 1144360, 1307840, 1602104, 1830976, 1912960, 2002630, 2101120, 2288720, 2615680, 3204208, 3661952, 4005260, 4577440, 6408416, 8010520, 9154880, 12816832, 16021040, 18309760, 25633664, 32042080, 64084160, 128168320]

約数ペア:

[(1, 128168320), (2, 64084160), (4, 32042080), (5, 25633664), (7, 18309760), (8, 16021040), (10, 12816832), (14, 9154880), (16, 8010520), (20, 6408416), (28, 4577440), (32, 4005260), (35, 3661952), (40, 3204208), (49, 2615680), (56, 2288720), (61, 2101120), (64, 2002630), (67, 1912960), (70, 1830976), (80, 1602104), (98, 1307840), (112, 1144360), (122, 1050560), (128, 1001315), (134, 956480), (140, 915488), (160, 801052), (196, 653920), (224, 572180), (244, 525280), (245, 523136), (268, 478240), (280, 457744), (305, 420224), (320, 400526), (335, 382592), (392, 326960), (427, 300160), (448, 286090), (469, 273280), (488, 262640), (490, 261568), (536, 239120), (560, 228872), (610, 210112), (640, 200263), (670, 191296), (784, 163480), (854, 150080), (896, 143045), (938, 136640), (976, 131320), (980, 130784), (1072, 119560), (1120, 114436), (1220, 105056), (1340, 95648), (1568, 81740), (1708, 75040), (1876, 68320), (1952, 65660), (1960, 65392), (2135, 60032), (2144, 59780), (2240, 57218), (2345, 54656), (2440, 52528), (2680, 47824), (2989, 42880), (3136, 40870), (3283, 39040), (3416, 37520), (3752, 34160), (3904, 32830), (3920, 32696), (4087, 31360), (4270, 30016), (4288, 29890), (4480, 28609), (4690, 27328), (4880, 26264), (5360, 23912), (5978, 21440), (6272, 20435), (6566, 19520), (6832, 18760), (7504, 17080), (7808, 16415), (7840, 16348), (8174, 15680), (8540, 15008), (8576, 14945), (9380, 13664), (9760, 13132), (10720, 11956)]