19805590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9127}}^1$

素因数の和:9172

約数の個数: 32

約数和(自身を含む): 42061824

約数和(自身を除く): 22256234

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9127, 18254, 45635, 63889, 91270, 127778, 282937, 319445, 565874, 638890, 1414685, 1980559, 2829370, 3961118, 9902795, 19805590]

約数ペア:

[(1, 19805590), (2, 9902795), (5, 3961118), (7, 2829370), (10, 1980559), (14, 1414685), (31, 638890), (35, 565874), (62, 319445), (70, 282937), (155, 127778), (217, 91270), (310, 63889), (434, 45635), (1085, 18254), (2170, 9127)]