128367424

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:455

約数の個数: 56

約数和(自身を含む): 261920736

約数和(自身を除く): 133553312

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 131, 244, 251, 262, 488, 502, 524, 976, 1004, 1048, 1952, 2008, 2096, 3904, 4016, 4192, 7991, 8032, 8384, 15311, 15982, 16064, 30622, 31964, 32881, 61244, 63928, 65762, 122488, 127856, 131524, 244976, 255712, 263048, 489952, 511424, 526096, 979904, 1052192, 2005741, 2104384, 4011482, 8022964, 16045928, 32091856, 64183712, 128367424]

約数ペア:

[(1, 128367424), (2, 64183712), (4, 32091856), (8, 16045928), (16, 8022964), (32, 4011482), (61, 2104384), (64, 2005741), (122, 1052192), (131, 979904), (244, 526096), (251, 511424), (262, 489952), (488, 263048), (502, 255712), (524, 244976), (976, 131524), (1004, 127856), (1048, 122488), (1952, 65762), (2008, 63928), (2096, 61244), (3904, 32881), (4016, 31964), (4192, 30622), (7991, 16064), (8032, 15982), (8384, 15311)]