20526968

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 49075200

約数和(自身を除く): 28548232

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 47, 56, 77, 88, 94, 154, 188, 308, 329, 376, 517, 616, 658, 709, 1034, 1316, 1418, 2068, 2632, 2836, 3619, 4136, 4963, 5672, 7238, 7799, 9926, 14476, 15598, 19852, 28952, 31196, 33323, 39704, 54593, 62392, 66646, 109186, 133292, 218372, 233261, 266584, 366553, 436744, 466522, 733106, 933044, 1466212, 1866088, 2565871, 2932424, 5131742, 10263484, 20526968]

約数ペア:

[(1, 20526968), (2, 10263484), (4, 5131742), (7, 2932424), (8, 2565871), (11, 1866088), (14, 1466212), (22, 933044), (28, 733106), (44, 466522), (47, 436744), (56, 366553), (77, 266584), (88, 233261), (94, 218372), (154, 133292), (188, 109186), (308, 66646), (329, 62392), (376, 54593), (517, 39704), (616, 33323), (658, 31196), (709, 28952), (1034, 19852), (1316, 15598), (1418, 14476), (2068, 9926), (2632, 7799), (2836, 7238), (3619, 5672), (4136, 4963)]