80481280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1429}}^1$

素因数の和:1465

約数の個数: 88

約数和(自身を含む): 210759120

約数和(自身を除く): 130277840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1024, 1280, 1408, 1429, 1760, 2560, 2816, 2858, 3520, 5120, 5632, 5716, 7040, 7145, 11264, 11432, 14080, 14290, 15719, 22864, 28160, 28580, 31438, 45728, 56320, 57160, 62876, 78595, 91456, 114320, 125752, 157190, 182912, 228640, 251504, 314380, 365824, 457280, 503008, 628760, 731648, 914560, 1006016, 1257520, 1463296, 1829120, 2012032, 2515040, 3658240, 4024064, 5030080, 7316480, 8048128, 10060160, 16096256, 20120320, 40240640, 80481280]

約数ペア:

[(1, 80481280), (2, 40240640), (4, 20120320), (5, 16096256), (8, 10060160), (10, 8048128), (11, 7316480), (16, 5030080), (20, 4024064), (22, 3658240), (32, 2515040), (40, 2012032), (44, 1829120), (55, 1463296), (64, 1257520), (80, 1006016), (88, 914560), (110, 731648), (128, 628760), (160, 503008), (176, 457280), (220, 365824), (256, 314380), (320, 251504), (352, 228640), (440, 182912), (512, 157190), (640, 125752), (704, 114320), (880, 91456), (1024, 78595), (1280, 62876), (1408, 57160), (1429, 56320), (1760, 45728), (2560, 31438), (2816, 28580), (2858, 28160), (3520, 22864), (5120, 15719), (5632, 14290), (5716, 14080), (7040, 11432), (7145, 11264)]