27558980

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2143}}^1$

素因数の和:2795

約数の個数: 24

約数和(自身を含む): 57990912

約数和(自身を除く): 30431932

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2143, 2572, 3215, 4286, 6430, 8572, 10715, 12860, 21430, 42860, 1377949, 2755898, 5511796, 6889745, 13779490, 27558980]

約数ペア:

[(1, 27558980), (2, 13779490), (4, 6889745), (5, 5511796), (10, 2755898), (20, 1377949), (643, 42860), (1286, 21430), (2143, 12860), (2572, 10715), (3215, 8572), (4286, 6430)]