257070814

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1759}}^1$

素因数の和:1865

約数の個数: 64

約数和(自身を含む): 525127680

約数和(自身を除く): 268056866

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 143, 146, 154, 182, 286, 511, 803, 949, 1001, 1022, 1606, 1759, 1898, 2002, 3518, 5621, 6643, 10439, 11242, 12313, 13286, 19349, 20878, 22867, 24626, 38698, 45734, 73073, 128407, 135443, 146146, 160069, 251537, 256814, 270886, 320138, 503074, 898849, 1412477, 1669291, 1760759, 1797698, 2824954, 3338582, 3521518, 9887339, 11685037, 18362201, 19774678, 23370074, 36724402, 128535407, 257070814]

約数ペア:

[(1, 257070814), (2, 128535407), (7, 36724402), (11, 23370074), (13, 19774678), (14, 18362201), (22, 11685037), (26, 9887339), (73, 3521518), (77, 3338582), (91, 2824954), (143, 1797698), (146, 1760759), (154, 1669291), (182, 1412477), (286, 898849), (511, 503074), (803, 320138), (949, 270886), (1001, 256814), (1022, 251537), (1606, 160069), (1759, 146146), (1898, 135443), (2002, 128407), (3518, 73073), (5621, 45734), (6643, 38698), (10439, 24626), (11242, 22867), (12313, 20878), (13286, 19349)]