17881040

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2213}}^1$

素因数の和:2327

約数の個数: 40

約数和(自身を含む): 42004008

約数和(自身を除く): 24122968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2213, 4040, 4426, 8080, 8852, 11065, 17704, 22130, 35408, 44260, 88520, 177040, 223513, 447026, 894052, 1117565, 1788104, 2235130, 3576208, 4470260, 8940520, 17881040]

約数ペア:

[(1, 17881040), (2, 8940520), (4, 4470260), (5, 3576208), (8, 2235130), (10, 1788104), (16, 1117565), (20, 894052), (40, 447026), (80, 223513), (101, 177040), (202, 88520), (404, 44260), (505, 35408), (808, 22130), (1010, 17704), (1616, 11065), (2020, 8852), (2213, 8080), (4040, 4426)]