18883180

素因数分解:

$2^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{997}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 39736368

約数和(自身を除く): 20853188

約数列:

[1, 2, 4, 5, 10, 20, 947, 997, 1894, 1994, 3788, 3988, 4735, 4985, 9470, 9970, 18940, 19940, 944159, 1888318, 3776636, 4720795, 9441590, 18883180]

約数ペア:

[(1, 18883180), (2, 9441590), (4, 4720795), (5, 3776636), (10, 1888318), (20, 944159), (947, 19940), (997, 18940), (1894, 9970), (1994, 9470), (3788, 4985), (3988, 4735)]