2019479620

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{101891}}^1$

素因数の和:102891

約数の個数: 24

約数和(自身を含む): 4245228288

約数和(自身を除く): 2225748668

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 9910, 19820, 101891, 203782, 407564, 509455, 1018910, 2037820, 100973981, 201947962, 403895924, 504869905, 1009739810, 2019479620]

約数ペア:

[(1, 2019479620), (2, 1009739810), (4, 504869905), (5, 403895924), (10, 201947962), (20, 100973981), (991, 2037820), (1982, 1018910), (3964, 509455), (4955, 407564), (9910, 203782), (19820, 101891)]