221958016

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 128

約数和(自身を含む): 534251520

約数和(自身を除く): 312293504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 61, 62, 64, 112, 122, 124, 128, 131, 217, 224, 244, 248, 262, 427, 434, 448, 488, 496, 524, 854, 868, 896, 917, 976, 992, 1048, 1708, 1736, 1834, 1891, 1952, 1984, 2096, 3416, 3472, 3668, 3782, 3904, 3968, 4061, 4192, 6832, 6944, 7336, 7564, 7808, 7991, 8122, 8384, 13237, 13664, 13888, 14672, 15128, 15982, 16244, 16768, 26474, 27328, 27776, 28427, 29344, 30256, 31964, 32488, 52948, 54656, 55937, 56854, 58688, 60512, 63928, 64976, 105896, 111874, 113708, 117376, 121024, 127856, 129952, 211792, 223748, 227416, 242048, 247721, 255712, 259904, 423584, 447496, 454832, 495442, 511424, 519808, 847168, 894992, 909664, 990884, 1022848, 1694336, 1734047, 1789984, 1819328, 1981768, 3468094, 3579968, 3638656, 3963536, 6936188, 7159936, 7927072, 13872376, 15854144, 27744752, 31708288, 55489504, 110979008, 221958016]

約数ペア:

[(1, 221958016), (2, 110979008), (4, 55489504), (7, 31708288), (8, 27744752), (14, 15854144), (16, 13872376), (28, 7927072), (31, 7159936), (32, 6936188), (56, 3963536), (61, 3638656), (62, 3579968), (64, 3468094), (112, 1981768), (122, 1819328), (124, 1789984), (128, 1734047), (131, 1694336), (217, 1022848), (224, 990884), (244, 909664), (248, 894992), (262, 847168), (427, 519808), (434, 511424), (448, 495442), (488, 454832), (496, 447496), (524, 423584), (854, 259904), (868, 255712), (896, 247721), (917, 242048), (976, 227416), (992, 223748), (1048, 211792), (1708, 129952), (1736, 127856), (1834, 121024), (1891, 117376), (1952, 113708), (1984, 111874), (2096, 105896), (3416, 64976), (3472, 63928), (3668, 60512), (3782, 58688), (3904, 56854), (3968, 55937), (4061, 54656), (4192, 52948), (6832, 32488), (6944, 31964), (7336, 30256), (7564, 29344), (7808, 28427), (7991, 27776), (8122, 27328), (8384, 26474), (13237, 16768), (13664, 16244), (13888, 15982), (14672, 15128)]