264648320

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1609}}^1$

素因数の和:1885

約数の個数: 64

約数和(自身を含む): 635531400

約数和(自身を除く): 370883080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 514, 640, 1028, 1285, 1609, 2056, 2570, 3218, 4112, 5140, 6436, 8045, 8224, 10280, 12872, 16090, 16448, 20560, 25744, 32180, 32896, 41120, 51488, 64360, 82240, 102976, 128720, 164480, 205952, 257440, 413513, 514880, 827026, 1029760, 1654052, 2067565, 3308104, 4135130, 6616208, 8270260, 13232416, 16540520, 26464832, 33081040, 52929664, 66162080, 132324160, 264648320]

約数ペア:

[(1, 264648320), (2, 132324160), (4, 66162080), (5, 52929664), (8, 33081040), (10, 26464832), (16, 16540520), (20, 13232416), (32, 8270260), (40, 6616208), (64, 4135130), (80, 3308104), (128, 2067565), (160, 1654052), (257, 1029760), (320, 827026), (514, 514880), (640, 413513), (1028, 257440), (1285, 205952), (1609, 164480), (2056, 128720), (2570, 102976), (3218, 82240), (4112, 64360), (5140, 51488), (6436, 41120), (8045, 32896), (8224, 32180), (10280, 25744), (12872, 20560), (16090, 16448)]