20369810

素因数分解:

$2^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1999}}^1$

素因数の和:3025

約数の個数: 16

約数和(自身を含む): 36720000

約数和(自身を除く): 16350190

約数列:

[1, 2, 5, 10, 1019, 1999, 2038, 3998, 5095, 9995, 10190, 19990, 2036981, 4073962, 10184905, 20369810]

約数ペア:

[(1, 20369810), (2, 10184905), (5, 4073962), (10, 2036981), (1019, 19990), (1999, 10190), (2038, 9995), (3998, 5095)]