205980159

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 366059520

約数和(自身を除く): 160079361

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 71, 77, 133, 209, 213, 231, 399, 497, 627, 661, 781, 1349, 1463, 1491, 1983, 2343, 4047, 4389, 4627, 5467, 7271, 9443, 12559, 13881, 14839, 16401, 21813, 28329, 37677, 44517, 46931, 50897, 87913, 103873, 138149, 140793, 152691, 263739, 311619, 328517, 414447, 516241, 891689, 967043, 985551, 1548723, 2675067, 2901129, 3613687, 6241823, 9808579, 10841061, 18725469, 29425737, 68660053, 205980159]

約数ペア:

[(1, 205980159), (3, 68660053), (7, 29425737), (11, 18725469), (19, 10841061), (21, 9808579), (33, 6241823), (57, 3613687), (71, 2901129), (77, 2675067), (133, 1548723), (209, 985551), (213, 967043), (231, 891689), (399, 516241), (497, 414447), (627, 328517), (661, 311619), (781, 263739), (1349, 152691), (1463, 140793), (1491, 138149), (1983, 103873), (2343, 87913), (4047, 50897), (4389, 46931), (4627, 44517), (5467, 37677), (7271, 28329), (9443, 21813), (12559, 16401), (13881, 14839)]