8940520

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2213}}^1$

素因数の和:2325

約数の個数: 32

約数和(自身を含む): 20324520

約数和(自身を除く): 11384000

約数列:

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

約数ペア:

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