208001990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{3673}}^1$

素因数の和:4496

約数の個数: 32

約数和(自身を含む): 428535360

約数和(自身を除く): 220533370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 809, 1618, 3673, 4045, 5663, 7346, 8090, 11326, 18365, 25711, 28315, 36730, 51422, 56630, 128555, 257110, 2971457, 5942914, 14857285, 20800199, 29714570, 41600398, 104000995, 208001990]

約数ペア:

[(1, 208001990), (2, 104000995), (5, 41600398), (7, 29714570), (10, 20800199), (14, 14857285), (35, 5942914), (70, 2971457), (809, 257110), (1618, 128555), (3673, 56630), (4045, 51422), (5663, 36730), (7346, 28315), (8090, 25711), (11326, 18365)]