20206490

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2039}}^1$

素因数の和:3037

約数の個数: 16

約数和(自身を含む): 36426240

約数和(自身を除く): 16219750

約数列:

[1, 2, 5, 10, 991, 1982, 2039, 4078, 4955, 9910, 10195, 20390, 2020649, 4041298, 10103245, 20206490]

約数ペア:

[(1, 20206490), (2, 10103245), (5, 4041298), (10, 2020649), (991, 20390), (1982, 10195), (2039, 9910), (4078, 4955)]