20257730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47111}}^1$

素因数の和:47161

約数の個数: 16

約数和(自身を含む): 37312704

約数和(自身を除く): 17054974

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47111, 94222, 235555, 471110, 2025773, 4051546, 10128865, 20257730]

約数ペア:

[(1, 20257730), (2, 10128865), (5, 4051546), (10, 2025773), (43, 471110), (86, 235555), (215, 94222), (430, 47111)]