18236656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 37497600

約数和(自身を除く): 19260944

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 239, 251, 304, 478, 502, 956, 1004, 1912, 2008, 3824, 4016, 4541, 4769, 9082, 9538, 18164, 19076, 36328, 38152, 59989, 72656, 76304, 119978, 239956, 479912, 959824, 1139791, 2279582, 4559164, 9118328, 18236656]

約数ペア:

[(1, 18236656), (2, 9118328), (4, 4559164), (8, 2279582), (16, 1139791), (19, 959824), (38, 479912), (76, 239956), (152, 119978), (239, 76304), (251, 72656), (304, 59989), (478, 38152), (502, 36328), (956, 19076), (1004, 18164), (1912, 9538), (2008, 9082), (3824, 4769), (4016, 4541)]