20515865984

素因数分解:

$2^7\times {\mathrm{131}}^1\times {\mathrm{1063}}^1\times {\mathrm{1151}}^1$

素因数の和:2359

約数の個数: 64

約数和(自身を含む): 41258004480

約数和(自身を除く): 20742138496

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 262, 524, 1048, 1063, 1151, 2096, 2126, 2302, 4192, 4252, 4604, 8384, 8504, 9208, 16768, 17008, 18416, 34016, 36832, 68032, 73664, 136064, 139253, 147328, 150781, 278506, 301562, 557012, 603124, 1114024, 1206248, 1223513, 2228048, 2412496, 2447026, 4456096, 4824992, 4894052, 8912192, 9649984, 9788104, 17824384, 19299968, 19576208, 39152416, 78304832, 156609664, 160280203, 320560406, 641120812, 1282241624, 2564483248, 5128966496, 10257932992, 20515865984]

約数ペア:

[(1, 20515865984), (2, 10257932992), (4, 5128966496), (8, 2564483248), (16, 1282241624), (32, 641120812), (64, 320560406), (128, 160280203), (131, 156609664), (262, 78304832), (524, 39152416), (1048, 19576208), (1063, 19299968), (1151, 17824384), (2096, 9788104), (2126, 9649984), (2302, 8912192), (4192, 4894052), (4252, 4824992), (4604, 4456096), (8384, 2447026), (8504, 2412496), (9208, 2228048), (16768, 1223513), (17008, 1206248), (18416, 1114024), (34016, 603124), (36832, 557012), (68032, 301562), (73664, 278506), (136064, 150781), (139253, 147328)]