257422080

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1626

約数の個数: 144

約数和(自身を含む): 841800960

約数和(自身を除く): 584378880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 256, 258, 320, 344, 384, 430, 480, 516, 640, 645, 688, 768, 860, 960, 1032, 1280, 1290, 1376, 1559, 1720, 1920, 2064, 2580, 2752, 3118, 3440, 3840, 4128, 4677, 5160, 5504, 6236, 6880, 7795, 8256, 9354, 10320, 11008, 12472, 13760, 15590, 16512, 18708, 20640, 23385, 24944, 27520, 31180, 33024, 37416, 41280, 46770, 49888, 55040, 62360, 67037, 74832, 82560, 93540, 99776, 124720, 134074, 149664, 165120, 187080, 199552, 201111, 249440, 268148, 299328, 335185, 374160, 399104, 402222, 498880, 536296, 598656, 670370, 748320, 804444, 997760, 1005555, 1072592, 1197312, 1340740, 1496640, 1608888, 1995520, 2011110, 2145184, 2681480, 2993280, 3217776, 4022220, 4290368, 5362960, 5986560, 6435552, 8044440, 8580736, 10725920, 12871104, 16088880, 17161472, 21451840, 25742208, 32177760, 42903680, 51484416, 64355520, 85807360, 128711040, 257422080]

約数ペア:

[(1, 257422080), (2, 128711040), (3, 85807360), (4, 64355520), (5, 51484416), (6, 42903680), (8, 32177760), (10, 25742208), (12, 21451840), (15, 17161472), (16, 16088880), (20, 12871104), (24, 10725920), (30, 8580736), (32, 8044440), (40, 6435552), (43, 5986560), (48, 5362960), (60, 4290368), (64, 4022220), (80, 3217776), (86, 2993280), (96, 2681480), (120, 2145184), (128, 2011110), (129, 1995520), (160, 1608888), (172, 1496640), (192, 1340740), (215, 1197312), (240, 1072592), (256, 1005555), (258, 997760), (320, 804444), (344, 748320), (384, 670370), (430, 598656), (480, 536296), (516, 498880), (640, 402222), (645, 399104), (688, 374160), (768, 335185), (860, 299328), (960, 268148), (1032, 249440), (1280, 201111), (1290, 199552), (1376, 187080), (1559, 165120), (1720, 149664), (1920, 134074), (2064, 124720), (2580, 99776), (2752, 93540), (3118, 82560), (3440, 74832), (3840, 67037), (4128, 62360), (4677, 55040), (5160, 49888), (5504, 46770), (6236, 41280), (6880, 37416), (7795, 33024), (8256, 31180), (9354, 27520), (10320, 24944), (11008, 23385), (12472, 20640), (13760, 18708), (15590, 16512)]