1280171520

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{18521}}^1$

素因数の和:18553

約数の個数: 160

約数和(自身を含む): 4547521440

約数和(自身を除く): 3267349920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3456, 3840, 4320, 4608, 5760, 6912, 7680, 8640, 11520, 13824, 17280, 18521, 23040, 34560, 37042, 55563, 69120, 74084, 92605, 111126, 148168, 166689, 185210, 222252, 277815, 296336, 333378, 370420, 444504, 500067, 555630, 592672, 666756, 740840, 833445, 889008, 1000134, 1111260, 1185344, 1333512, 1481680, 1666890, 1778016, 2000268, 2222520, 2370688, 2500335, 2667024, 2963360, 3333780, 3556032, 4000536, 4445040, 4741376, 5000670, 5334048, 5926720, 6667560, 7112064, 8001072, 8890080, 9482752, 10001340, 10668096, 11853440, 13335120, 14224128, 16002144, 17780160, 20002680, 21336192, 23706880, 26670240, 28448256, 32004288, 35560320, 40005360, 42672384, 47413760, 53340480, 64008576, 71120640, 80010720, 85344768, 106680960, 128017152, 142241280, 160021440, 213361920, 256034304, 320042880, 426723840, 640085760, 1280171520]

約数ペア:

[(1, 1280171520), (2, 640085760), (3, 426723840), (4, 320042880), (5, 256034304), (6, 213361920), (8, 160021440), (9, 142241280), (10, 128017152), (12, 106680960), (15, 85344768), (16, 80010720), (18, 71120640), (20, 64008576), (24, 53340480), (27, 47413760), (30, 42672384), (32, 40005360), (36, 35560320), (40, 32004288), (45, 28448256), (48, 26670240), (54, 23706880), (60, 21336192), (64, 20002680), (72, 17780160), (80, 16002144), (90, 14224128), (96, 13335120), (108, 11853440), (120, 10668096), (128, 10001340), (135, 9482752), (144, 8890080), (160, 8001072), (180, 7112064), (192, 6667560), (216, 5926720), (240, 5334048), (256, 5000670), (270, 4741376), (288, 4445040), (320, 4000536), (360, 3556032), (384, 3333780), (432, 2963360), (480, 2667024), (512, 2500335), (540, 2370688), (576, 2222520), (640, 2000268), (720, 1778016), (768, 1666890), (864, 1481680), (960, 1333512), (1080, 1185344), (1152, 1111260), (1280, 1000134), (1440, 889008), (1536, 833445), (1728, 740840), (1920, 666756), (2160, 592672), (2304, 555630), (2560, 500067), (2880, 444504), (3456, 370420), (3840, 333378), (4320, 296336), (4608, 277815), (5760, 222252), (6912, 185210), (7680, 166689), (8640, 148168), (11520, 111126), (13824, 92605), (17280, 74084), (18521, 69120), (23040, 55563), (34560, 37042)]