208359866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 385523712

約数和(自身を除く): 177163846

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 71, 142, 143, 286, 331, 341, 403, 662, 682, 781, 806, 923, 1562, 1846, 2201, 3641, 4303, 4402, 4433, 7282, 8606, 8866, 10153, 10261, 20306, 20522, 23501, 24211, 28613, 47002, 47333, 48422, 57226, 94666, 112871, 133393, 225742, 258511, 266786, 305513, 314743, 517022, 611026, 629486, 728531, 1457062, 1467323, 2934646, 3360643, 6721286, 8013841, 9470903, 16027682, 18941806, 104179933, 208359866]

約数ペア:

[(1, 208359866), (2, 104179933), (11, 18941806), (13, 16027682), (22, 9470903), (26, 8013841), (31, 6721286), (62, 3360643), (71, 2934646), (142, 1467323), (143, 1457062), (286, 728531), (331, 629486), (341, 611026), (403, 517022), (662, 314743), (682, 305513), (781, 266786), (806, 258511), (923, 225742), (1562, 133393), (1846, 112871), (2201, 94666), (3641, 57226), (4303, 48422), (4402, 47333), (4433, 47002), (7282, 28613), (8606, 24211), (8866, 23501), (10153, 20522), (10261, 20306)]