31130780

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6857}}^1$

素因数の和:7093

約数の個数: 24

約数和(自身を含む): 65672208

約数和(自身を除く): 34541428

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 6857, 13714, 27428, 34285, 68570, 137140, 1556539, 3113078, 6226156, 7782695, 15565390, 31130780]

約数ペア:

[(1, 31130780), (2, 15565390), (4, 7782695), (5, 6226156), (10, 3113078), (20, 1556539), (227, 137140), (454, 68570), (908, 34285), (1135, 27428), (2270, 13714), (4540, 6857)]