19957986496

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:539

約数の個数: 168

約数和(自身を含む): 47232100608

約数和(自身を除く): 27274114112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 151, 217, 224, 248, 302, 307, 434, 448, 496, 604, 614, 868, 961, 992, 1057, 1208, 1228, 1736, 1922, 1984, 2114, 2149, 2416, 2456, 3472, 3844, 4228, 4298, 4681, 4832, 4912, 6727, 6944, 7688, 8456, 8596, 9362, 9517, 9664, 9824, 13454, 13888, 15376, 16912, 17192, 18724, 19034, 19648, 26908, 30752, 32767, 33824, 34384, 37448, 38068, 46357, 53816, 61504, 65534, 66619, 67648, 68768, 74896, 76136, 92714, 107632, 131068, 133238, 137536, 145111, 149792, 152272, 185428, 215264, 262136, 266476, 290222, 295027, 299584, 304544, 324499, 370856, 430528, 524272, 532952, 580444, 590054, 609088, 648998, 741712, 1015777, 1048544, 1065904, 1160888, 1180108, 1297996, 1437067, 1483424, 2031554, 2065189, 2097088, 2131808, 2321776, 2360216, 2595992, 2874134, 2966848, 4063108, 4130378, 4263616, 4643552, 4720432, 5191984, 5748268, 8126216, 8260756, 9287104, 9440864, 10059469, 10383968, 11496536, 16252432, 16521512, 18881728, 20118938, 20767936, 22993072, 32504864, 33043024, 40237876, 44549077, 45986144, 65009728, 66086048, 80475752, 89098154, 91972288, 132172096, 160951504, 178196308, 311843539, 321903008, 356392616, 623687078, 643806016, 712785232, 1247374156, 1425570464, 2494748312, 2851140928, 4989496624, 9978993248, 19957986496]

約数ペア:

[(1, 19957986496), (2, 9978993248), (4, 4989496624), (7, 2851140928), (8, 2494748312), (14, 1425570464), (16, 1247374156), (28, 712785232), (31, 643806016), (32, 623687078), (56, 356392616), (62, 321903008), (64, 311843539), (112, 178196308), (124, 160951504), (151, 132172096), (217, 91972288), (224, 89098154), (248, 80475752), (302, 66086048), (307, 65009728), (434, 45986144), (448, 44549077), (496, 40237876), (604, 33043024), (614, 32504864), (868, 22993072), (961, 20767936), (992, 20118938), (1057, 18881728), (1208, 16521512), (1228, 16252432), (1736, 11496536), (1922, 10383968), (1984, 10059469), (2114, 9440864), (2149, 9287104), (2416, 8260756), (2456, 8126216), (3472, 5748268), (3844, 5191984), (4228, 4720432), (4298, 4643552), (4681, 4263616), (4832, 4130378), (4912, 4063108), (6727, 2966848), (6944, 2874134), (7688, 2595992), (8456, 2360216), (8596, 2321776), (9362, 2131808), (9517, 2097088), (9664, 2065189), (9824, 2031554), (13454, 1483424), (13888, 1437067), (15376, 1297996), (16912, 1180108), (17192, 1160888), (18724, 1065904), (19034, 1048544), (19648, 1015777), (26908, 741712), (30752, 648998), (32767, 609088), (33824, 590054), (34384, 580444), (37448, 532952), (38068, 524272), (46357, 430528), (53816, 370856), (61504, 324499), (65534, 304544), (66619, 299584), (67648, 295027), (68768, 290222), (74896, 266476), (76136, 262136), (92714, 215264), (107632, 185428), (131068, 152272), (133238, 149792), (137536, 145111)]