20558180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10597}}^1$

素因数の和:10703

約数の個数: 24

約数和(自身を含む): 43621368

約数和(自身を除く): 23063188

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10597, 21194, 42388, 52985, 105970, 211940, 1027909, 2055818, 4111636, 5139545, 10279090, 20558180]

約数ペア:

[(1, 20558180), (2, 10279090), (4, 5139545), (5, 4111636), (10, 2055818), (20, 1027909), (97, 211940), (194, 105970), (388, 52985), (485, 42388), (970, 21194), (1940, 10597)]