199985984

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4001}}^1$

素因数の和:4095

約数の個数: 56

約数和(自身を含む): 439131456

約数和(自身を除く): 239145472

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 142, 176, 284, 352, 568, 704, 781, 1136, 1562, 2272, 3124, 4001, 4544, 6248, 8002, 12496, 16004, 24992, 32008, 44011, 49984, 64016, 88022, 128032, 176044, 256064, 284071, 352088, 568142, 704176, 1136284, 1408352, 2272568, 2816704, 3124781, 4545136, 6249562, 9090272, 12499124, 18180544, 24998248, 49996496, 99992992, 199985984]

約数ペア:

[(1, 199985984), (2, 99992992), (4, 49996496), (8, 24998248), (11, 18180544), (16, 12499124), (22, 9090272), (32, 6249562), (44, 4545136), (64, 3124781), (71, 2816704), (88, 2272568), (142, 1408352), (176, 1136284), (284, 704176), (352, 568142), (568, 352088), (704, 284071), (781, 256064), (1136, 176044), (1562, 128032), (2272, 88022), (3124, 64016), (4001, 49984), (4544, 44011), (6248, 32008), (8002, 24992), (12496, 16004)]