206856080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{25601}}^1$

素因数の和:25715

約数の個数: 40

約数和(自身を含む): 485721144

約数和(自身を除く): 278865064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 25601, 51202, 102404, 128005, 204808, 256010, 409616, 512020, 1024040, 2048080, 2585701, 5171402, 10342804, 12928505, 20685608, 25857010, 41371216, 51714020, 103428040, 206856080]

約数ペア:

[(1, 206856080), (2, 103428040), (4, 51714020), (5, 41371216), (8, 25857010), (10, 20685608), (16, 12928505), (20, 10342804), (40, 5171402), (80, 2585701), (101, 2048080), (202, 1024040), (404, 512020), (505, 409616), (808, 256010), (1010, 204808), (1616, 128005), (2020, 102404), (4040, 51202), (8080, 25601)]