87345881

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 115831296

約数和(自身を除く): 28485415

約数列:

[1, 7, 17, 23, 47, 49, 97, 119, 161, 329, 391, 679, 799, 833, 1081, 1127, 1649, 2231, 2303, 2737, 4559, 4753, 5593, 7567, 11543, 15617, 18377, 19159, 31913, 37927, 39151, 52969, 77503, 80801, 104857, 109319, 128639, 223391, 265489, 542521, 733999, 900473, 1782569, 1858423, 3797647, 5137993, 12477983, 87345881]

約数ペア:

[(1, 87345881), (7, 12477983), (17, 5137993), (23, 3797647), (47, 1858423), (49, 1782569), (97, 900473), (119, 733999), (161, 542521), (329, 265489), (391, 223391), (679, 128639), (799, 109319), (833, 104857), (1081, 80801), (1127, 77503), (1649, 52969), (2231, 39151), (2303, 37927), (2737, 31913), (4559, 19159), (4753, 18377), (5593, 15617), (7567, 11543)]