406207984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1777}}^1$

素因数の和:1962

約数の個数: 80

約数和(自身を含む): 975368128

約数和(自身を除く): 569160144

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 157, 182, 208, 314, 364, 628, 728, 1099, 1256, 1456, 1777, 2041, 2198, 2512, 3554, 4082, 4396, 7108, 8164, 8792, 12439, 14216, 14287, 16328, 17584, 23101, 24878, 28432, 28574, 32656, 46202, 49756, 57148, 92404, 99512, 114296, 161707, 184808, 199024, 228592, 278989, 323414, 369616, 557978, 646828, 1115956, 1293656, 1952923, 2231912, 2587312, 3626857, 3905846, 4463824, 7253714, 7811692, 14507428, 15623384, 25387999, 29014856, 31246768, 50775998, 58029712, 101551996, 203103992, 406207984]

約数ペア:

[(1, 406207984), (2, 203103992), (4, 101551996), (7, 58029712), (8, 50775998), (13, 31246768), (14, 29014856), (16, 25387999), (26, 15623384), (28, 14507428), (52, 7811692), (56, 7253714), (91, 4463824), (104, 3905846), (112, 3626857), (157, 2587312), (182, 2231912), (208, 1952923), (314, 1293656), (364, 1115956), (628, 646828), (728, 557978), (1099, 369616), (1256, 323414), (1456, 278989), (1777, 228592), (2041, 199024), (2198, 184808), (2512, 161707), (3554, 114296), (4082, 99512), (4396, 92404), (7108, 57148), (8164, 49756), (8792, 46202), (12439, 32656), (14216, 28574), (14287, 28432), (16328, 24878), (17584, 23101)]