257269788

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{2969}}^1$

素因数の和:3091

約数の個数: 72

約数和(自身を含む): 681080400

約数和(自身を除く): 423810612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 83, 87, 116, 166, 174, 249, 261, 332, 348, 498, 522, 747, 996, 1044, 1494, 2407, 2969, 2988, 4814, 5938, 7221, 8907, 9628, 11876, 14442, 17814, 21663, 26721, 28884, 35628, 43326, 53442, 86101, 86652, 106884, 172202, 246427, 258303, 344404, 492854, 516606, 739281, 774909, 985708, 1033212, 1478562, 1549818, 2217843, 2957124, 3099636, 4435686, 7146383, 8871372, 14292766, 21439149, 28585532, 42878298, 64317447, 85756596, 128634894, 257269788]

約数ペア:

[(1, 257269788), (2, 128634894), (3, 85756596), (4, 64317447), (6, 42878298), (9, 28585532), (12, 21439149), (18, 14292766), (29, 8871372), (36, 7146383), (58, 4435686), (83, 3099636), (87, 2957124), (116, 2217843), (166, 1549818), (174, 1478562), (249, 1033212), (261, 985708), (332, 774909), (348, 739281), (498, 516606), (522, 492854), (747, 344404), (996, 258303), (1044, 246427), (1494, 172202), (2407, 106884), (2969, 86652), (2988, 86101), (4814, 53442), (5938, 43326), (7221, 35628), (8907, 28884), (9628, 26721), (11876, 21663), (14442, 17814)]