19807900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28297}}^1$

素因数の和:28318

約数の個数: 36

約数和(自身を含む): 49125328

約数和(自身を除く): 29317428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28297, 56594, 113188, 141485, 198079, 282970, 396158, 565940, 707425, 792316, 990395, 1414850, 1980790, 2829700, 3961580, 4951975, 9903950, 19807900]

約数ペア:

[(1, 19807900), (2, 9903950), (4, 4951975), (5, 3961580), (7, 2829700), (10, 1980790), (14, 1414850), (20, 990395), (25, 792316), (28, 707425), (35, 565940), (50, 396158), (70, 282970), (100, 198079), (140, 141485), (175, 113188), (350, 56594), (700, 28297)]