20700820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147863}}^1$

素因数の和:147879

約数の個数: 24

約数和(自身を含む): 49682304

約数和(自身を除く): 28981484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147863, 295726, 591452, 739315, 1035041, 1478630, 2070082, 2957260, 4140164, 5175205, 10350410, 20700820]

約数ペア:

[(1, 20700820), (2, 10350410), (4, 5175205), (5, 4140164), (7, 2957260), (10, 2070082), (14, 1478630), (20, 1035041), (28, 739315), (35, 591452), (70, 295726), (140, 147863)]