128637712

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{49937}}^1$

素因数の和:49975

約数の個数: 40

約数和(自身を含む): 297230976

約数和(自身を除く): 168593264

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 49937, 99874, 199748, 349559, 399496, 699118, 798992, 1148551, 1398236, 2297102, 2796472, 4594204, 5592944, 8039857, 9188408, 16079714, 18376816, 32159428, 64318856, 128637712]

約数ペア:

[(1, 128637712), (2, 64318856), (4, 32159428), (7, 18376816), (8, 16079714), (14, 9188408), (16, 8039857), (23, 5592944), (28, 4594204), (46, 2796472), (56, 2297102), (92, 1398236), (112, 1148551), (161, 798992), (184, 699118), (322, 399496), (368, 349559), (644, 199748), (1288, 99874), (2576, 49937)]