20698660

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1913}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 43570296

約数和(自身を除く): 22871636

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1913, 2164, 2705, 3826, 5410, 7652, 9565, 10820, 19130, 38260, 1034933, 2069866, 4139732, 5174665, 10349330, 20698660]

約数ペア:

[(1, 20698660), (2, 10349330), (4, 5174665), (5, 4139732), (10, 2069866), (20, 1034933), (541, 38260), (1082, 19130), (1913, 10820), (2164, 9565), (2705, 7652), (3826, 5410)]