20856460

素因数分解:

$2^2\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1181}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 43885296

約数和(自身を除く): 23028836

約数列:

[1, 2, 4, 5, 10, 20, 883, 1181, 1766, 2362, 3532, 4415, 4724, 5905, 8830, 11810, 17660, 23620, 1042823, 2085646, 4171292, 5214115, 10428230, 20856460]

約数ペア:

[(1, 20856460), (2, 10428230), (4, 5214115), (5, 4171292), (10, 2085646), (20, 1042823), (883, 23620), (1181, 17660), (1766, 11810), (2362, 8830), (3532, 5905), (4415, 4724)]