27828955

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 43667712

約数和(自身を除く): 15838757

約数列:

[1, 5, 7, 11, 35, 41, 43, 55, 77, 205, 215, 287, 301, 385, 451, 473, 1435, 1505, 1681, 1763, 2255, 2365, 3157, 3311, 8405, 8815, 11767, 12341, 15785, 16555, 18491, 19393, 58835, 61705, 72283, 92455, 96965, 129437, 135751, 361415, 505981, 647185, 678755, 795113, 2529905, 3975565, 5565791, 27828955]

約数ペア:

[(1, 27828955), (5, 5565791), (7, 3975565), (11, 2529905), (35, 795113), (41, 678755), (43, 647185), (55, 505981), (77, 361415), (205, 135751), (215, 129437), (287, 96965), (301, 92455), (385, 72283), (451, 61705), (473, 58835), (1435, 19393), (1505, 18491), (1681, 16555), (1763, 15785), (2255, 12341), (2365, 11767), (3157, 8815), (3311, 8405)]