20121216

素因数分解:

$2^7\times 3^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:937

約数の個数: 64

約数和(自身を含む): 54386400

約数和(自身を除く): 34265184

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 96, 122, 128, 183, 192, 244, 366, 384, 488, 732, 859, 976, 1464, 1718, 1952, 2577, 2928, 3436, 3904, 5154, 5856, 6872, 7808, 10308, 11712, 13744, 20616, 23424, 27488, 41232, 52399, 54976, 82464, 104798, 109952, 157197, 164928, 209596, 314394, 329856, 419192, 628788, 838384, 1257576, 1676768, 2515152, 3353536, 5030304, 6707072, 10060608, 20121216]

約数ペア:

[(1, 20121216), (2, 10060608), (3, 6707072), (4, 5030304), (6, 3353536), (8, 2515152), (12, 1676768), (16, 1257576), (24, 838384), (32, 628788), (48, 419192), (61, 329856), (64, 314394), (96, 209596), (122, 164928), (128, 157197), (183, 109952), (192, 104798), (244, 82464), (366, 54976), (384, 52399), (488, 41232), (732, 27488), (859, 23424), (976, 20616), (1464, 13744), (1718, 11712), (1952, 10308), (2577, 7808), (2928, 6872), (3436, 5856), (3904, 5154)]