20481649664

素因数分解:

$2^{10}\times 7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:454

約数の個数: 176

約数和(自身を含む): 47791718400

約数和(自身を除く): 27310068736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 128, 149, 151, 224, 254, 256, 298, 302, 448, 508, 512, 596, 604, 889, 896, 1016, 1024, 1043, 1057, 1192, 1208, 1778, 1792, 2032, 2086, 2114, 2384, 2416, 3556, 3584, 4064, 4172, 4228, 4768, 4832, 7112, 7168, 8128, 8344, 8456, 9536, 9664, 14224, 16256, 16688, 16912, 18923, 19072, 19177, 19328, 22499, 28448, 32512, 33376, 33824, 37846, 38144, 38354, 38656, 44998, 56896, 65024, 66752, 67648, 75692, 76288, 76708, 77312, 89996, 113792, 130048, 132461, 133504, 134239, 135296, 151384, 152576, 153416, 154624, 157493, 179992, 227584, 264922, 267008, 268478, 270592, 302768, 306832, 314986, 359984, 455168, 529844, 534016, 536956, 541184, 605536, 613664, 629972, 719968, 910336, 1059688, 1068032, 1073912, 1082368, 1211072, 1227328, 1259944, 1439936, 2119376, 2147824, 2422144, 2454656, 2519888, 2857373, 2879872, 4238752, 4295648, 4844288, 4909312, 5039776, 5714746, 5759744, 8477504, 8591296, 9688576, 9818624, 10079552, 11429492, 11519488, 16955008, 17182592, 19377152, 19637248, 20001611, 20159104, 22858984, 23038976, 33910016, 34365184, 40003222, 40318208, 45717968, 67820032, 68730368, 80006444, 80636416, 91435936, 135640064, 137460736, 160012888, 161272832, 182871872, 320025776, 365743744, 640051552, 731487488, 1280103104, 1462974976, 2560206208, 2925949952, 5120412416, 10240824832, 20481649664]

約数ペア:

[(1, 20481649664), (2, 10240824832), (4, 5120412416), (7, 2925949952), (8, 2560206208), (14, 1462974976), (16, 1280103104), (28, 731487488), (32, 640051552), (56, 365743744), (64, 320025776), (112, 182871872), (127, 161272832), (128, 160012888), (149, 137460736), (151, 135640064), (224, 91435936), (254, 80636416), (256, 80006444), (298, 68730368), (302, 67820032), (448, 45717968), (508, 40318208), (512, 40003222), (596, 34365184), (604, 33910016), (889, 23038976), (896, 22858984), (1016, 20159104), (1024, 20001611), (1043, 19637248), (1057, 19377152), (1192, 17182592), (1208, 16955008), (1778, 11519488), (1792, 11429492), (2032, 10079552), (2086, 9818624), (2114, 9688576), (2384, 8591296), (2416, 8477504), (3556, 5759744), (3584, 5714746), (4064, 5039776), (4172, 4909312), (4228, 4844288), (4768, 4295648), (4832, 4238752), (7112, 2879872), (7168, 2857373), (8128, 2519888), (8344, 2454656), (8456, 2422144), (9536, 2147824), (9664, 2119376), (14224, 1439936), (16256, 1259944), (16688, 1227328), (16912, 1211072), (18923, 1082368), (19072, 1073912), (19177, 1068032), (19328, 1059688), (22499, 910336), (28448, 719968), (32512, 629972), (33376, 613664), (33824, 605536), (37846, 541184), (38144, 536956), (38354, 534016), (38656, 529844), (44998, 455168), (56896, 359984), (65024, 314986), (66752, 306832), (67648, 302768), (75692, 270592), (76288, 268478), (76708, 267008), (77312, 264922), (89996, 227584), (113792, 179992), (130048, 157493), (132461, 154624), (133504, 153416), (134239, 152576), (135296, 151384)]