340425.0000000

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 8818200

約数和(自身を除く): 4932880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 709, 1096, 1370, 1418, 2740, 2836, 3545, 5480, 5672, 7090, 14180, 28360, 97133, 194266, 388532, 485665, 777064, 971330, 1942660, 3885320]

約数ペア:

[(1, 3885320), (2, 1942660), (4, 971330), (5, 777064), (8, 485665), (10, 388532), (20, 194266), (40, 97133), (137, 28360), (274, 14180), (548, 7090), (685, 5672), (709, 5480), (1096, 3545), (1370, 2836), (1418, 2740)]