280549731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 480116736

約数和(自身を除く): 199567005

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 127, 131, 219, 231, 381, 393, 511, 803, 889, 917, 1397, 1441, 1533, 2409, 2667, 2751, 4191, 4323, 5621, 9271, 9563, 9779, 10087, 16637, 16863, 27813, 28689, 29337, 30261, 49911, 64897, 66941, 101981, 105193, 116459, 183007, 194691, 200823, 305943, 315579, 349377, 549021, 713867, 736351, 1214501, 1281049, 2141601, 2209053, 3643503, 3843147, 8501507, 13359511, 25504521, 40078533, 93516577, 280549731]

約数ペア:

[(1, 280549731), (3, 93516577), (7, 40078533), (11, 25504521), (21, 13359511), (33, 8501507), (73, 3843147), (77, 3643503), (127, 2209053), (131, 2141601), (219, 1281049), (231, 1214501), (381, 736351), (393, 713867), (511, 549021), (803, 349377), (889, 315579), (917, 305943), (1397, 200823), (1441, 194691), (1533, 183007), (2409, 116459), (2667, 105193), (2751, 101981), (4191, 66941), (4323, 64897), (5621, 49911), (9271, 30261), (9563, 29337), (9779, 28689), (10087, 27813), (16637, 16863)]