647427204

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 1803110400

約数和(自身を除く): 1155683196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 127, 171, 174, 228, 254, 257, 261, 342, 348, 381, 508, 514, 522, 551, 684, 762, 771, 1028, 1044, 1102, 1143, 1524, 1542, 1653, 2204, 2286, 2313, 2413, 3084, 3306, 3683, 4572, 4626, 4826, 4883, 4959, 6612, 7239, 7366, 7453, 9252, 9652, 9766, 9918, 11049, 14478, 14649, 14732, 14906, 19532, 19836, 21717, 22098, 22359, 28956, 29298, 29812, 32639, 33147, 43434, 43947, 44196, 44718, 58596, 65278, 66294, 67077, 69977, 86868, 87894, 89436, 97917, 130556, 132588, 134154, 139954, 141607, 175788, 195834, 209931, 268308, 279908, 283214, 293751, 391668, 419862, 424821, 566428, 587502, 620141, 629793, 839724, 849642, 946531, 1175004, 1240282, 1259586, 1274463, 1699284, 1860423, 1893062, 2480564, 2519172, 2548926, 2839593, 3720846, 3786124, 5097852, 5581269, 5679186, 7441692, 8518779, 11162538, 11358372, 17037558, 17984089, 22325076, 34075116, 35968178, 53952267, 71936356, 107904534, 161856801, 215809068, 323713602, 647427204]

約数ペア:

[(1, 647427204), (2, 323713602), (3, 215809068), (4, 161856801), (6, 107904534), (9, 71936356), (12, 53952267), (18, 35968178), (19, 34075116), (29, 22325076), (36, 17984089), (38, 17037558), (57, 11358372), (58, 11162538), (76, 8518779), (87, 7441692), (114, 5679186), (116, 5581269), (127, 5097852), (171, 3786124), (174, 3720846), (228, 2839593), (254, 2548926), (257, 2519172), (261, 2480564), (342, 1893062), (348, 1860423), (381, 1699284), (508, 1274463), (514, 1259586), (522, 1240282), (551, 1175004), (684, 946531), (762, 849642), (771, 839724), (1028, 629793), (1044, 620141), (1102, 587502), (1143, 566428), (1524, 424821), (1542, 419862), (1653, 391668), (2204, 293751), (2286, 283214), (2313, 279908), (2413, 268308), (3084, 209931), (3306, 195834), (3683, 175788), (4572, 141607), (4626, 139954), (4826, 134154), (4883, 132588), (4959, 130556), (6612, 97917), (7239, 89436), (7366, 87894), (7453, 86868), (9252, 69977), (9652, 67077), (9766, 66294), (9918, 65278), (11049, 58596), (14478, 44718), (14649, 44196), (14732, 43947), (14906, 43434), (19532, 33147), (19836, 32639), (21717, 29812), (22098, 29298), (22359, 28956)]