80875520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1$

素因数の和:399

約数の個数: 104

約数和(自身を含む): 212310720

約数和(自身を除く): 131435200

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, 359, 440, 512, 640, 704, 718, 880, 1024, 1280, 1408, 1436, 1760, 1795, 2048, 2560, 2816, 2872, 3520, 3590, 3949, 4096, 5120, 5632, 5744, 7040, 7180, 7898, 10240, 11264, 11488, 14080, 14360, 15796, 19745, 20480, 22528, 22976, 28160, 28720, 31592, 39490, 45056, 45952, 56320, 57440, 63184, 78980, 91904, 112640, 114880, 126368, 157960, 183808, 225280, 229760, 252736, 315920, 367616, 459520, 505472, 631840, 735232, 919040, 1010944, 1263680, 1470464, 1838080, 2021888, 2527360, 3676160, 4043776, 5054720, 7352320, 8087552, 10109440, 16175104, 20218880, 40437760, 80875520]

約数ペア:

[(1, 80875520), (2, 40437760), (4, 20218880), (5, 16175104), (8, 10109440), (10, 8087552), (11, 7352320), (16, 5054720), (20, 4043776), (22, 3676160), (32, 2527360), (40, 2021888), (44, 1838080), (55, 1470464), (64, 1263680), (80, 1010944), (88, 919040), (110, 735232), (128, 631840), (160, 505472), (176, 459520), (220, 367616), (256, 315920), (320, 252736), (352, 229760), (359, 225280), (440, 183808), (512, 157960), (640, 126368), (704, 114880), (718, 112640), (880, 91904), (1024, 78980), (1280, 63184), (1408, 57440), (1436, 56320), (1760, 45952), (1795, 45056), (2048, 39490), (2560, 31592), (2816, 28720), (2872, 28160), (3520, 22976), (3590, 22528), (3949, 20480), (4096, 19745), (5120, 15796), (5632, 14360), (5744, 14080), (7040, 11488), (7180, 11264), (7898, 10240)]