156780820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1119863}}^1$

素因数の和:1119879

約数の個数: 24

約数和(自身を含む): 376274304

約数和(自身を除く): 219493484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1119863, 2239726, 4479452, 5599315, 7839041, 11198630, 15678082, 22397260, 31356164, 39195205, 78390410, 156780820]

約数ペア:

[(1, 156780820), (2, 78390410), (4, 39195205), (5, 31356164), (7, 22397260), (10, 15678082), (14, 11198630), (20, 7839041), (28, 5599315), (35, 4479452), (70, 2239726), (140, 1119863)]