20646235

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{881}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 25613280

約数和(自身を除く): 4967045

約数列:

[1, 5, 43, 109, 215, 545, 881, 4405, 4687, 23435, 37883, 96029, 189415, 480145, 4129247, 20646235]

約数ペア:

[(1, 20646235), (5, 4129247), (43, 480145), (109, 189415), (215, 96029), (545, 37883), (881, 23435), (4405, 4687)]