81967288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18329}}^1$

素因数の和:18391

約数の個数: 32

約数和(自身を含む): 169369200

約数和(自身を除く): 87401912

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 18329, 36658, 73316, 146632, 238277, 476554, 788147, 953108, 1576294, 1906216, 3152588, 6305176, 10245911, 20491822, 40983644, 81967288]

約数ペア:

[(1, 81967288), (2, 40983644), (4, 20491822), (8, 10245911), (13, 6305176), (26, 3152588), (43, 1906216), (52, 1576294), (86, 953108), (104, 788147), (172, 476554), (344, 238277), (559, 146632), (1118, 73316), (2236, 36658), (4472, 18329)]