1905017855

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 2544812640

約数和(自身を除く): 639794785

約数列:

[1, 5, 13, 65, 73, 89, 169, 347, 365, 445, 845, 949, 1157, 1735, 4511, 4745, 5785, 6497, 12337, 15041, 22555, 25331, 30883, 32485, 58643, 61685, 75205, 84461, 126655, 154415, 293215, 329303, 401479, 422305, 1097993, 1646515, 2007395, 2254459, 4280939, 5219227, 5489965, 11272295, 21404695, 26096135, 29307967, 146539835, 381003571, 1905017855]

約数ペア:

[(1, 1905017855), (5, 381003571), (13, 146539835), (65, 29307967), (73, 26096135), (89, 21404695), (169, 11272295), (347, 5489965), (365, 5219227), (445, 4280939), (845, 2254459), (949, 2007395), (1157, 1646515), (1735, 1097993), (4511, 422305), (4745, 401479), (5785, 329303), (6497, 293215), (12337, 154415), (15041, 126655), (22555, 84461), (25331, 75205), (30883, 61685), (32485, 58643)]