20319940

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1433}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 42761880

約数和(自身を除く): 22441940

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 1433, 2836, 2866, 3545, 5732, 7090, 7165, 14180, 14330, 28660, 1015997, 2031994, 4063988, 5079985, 10159970, 20319940]

約数ペア:

[(1, 20319940), (2, 10159970), (4, 5079985), (5, 4063988), (10, 2031994), (20, 1015997), (709, 28660), (1418, 14330), (1433, 14180), (2836, 7165), (2866, 7090), (3545, 5732)]