1289739878

素因数分解:

$2^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{280013}}^1$

素因数の和:280076

約数の個数: 24

約数和(自身を含む): 2298354912

約数和(自身を除く): 1008615034

約数列:

[1, 2, 7, 14, 47, 49, 94, 98, 329, 658, 2303, 4606, 280013, 560026, 1960091, 3920182, 13160611, 13720637, 26321222, 27441274, 92124277, 184248554, 644869939, 1289739878]

約数ペア:

[(1, 1289739878), (2, 644869939), (7, 184248554), (14, 92124277), (47, 27441274), (49, 26321222), (94, 13720637), (98, 13160611), (329, 3920182), (658, 1960091), (2303, 560026), (4606, 280013)]