87500

素因数分解:

$2^2\times 5^5\times 7^1$

素因数の和:36

約数の個数: 36

約数和(自身を含む): 218736

約数和(自身を除く): 131236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1250, 1750, 2500, 3125, 3500, 4375, 6250, 8750, 12500, 17500, 21875, 43750, 87500]

約数ペア:

[(1, 87500), (2, 43750), (4, 21875), (5, 17500), (7, 12500), (10, 8750), (14, 6250), (20, 4375), (25, 3500), (28, 3125), (35, 2500), (50, 1750), (70, 1250), (100, 875), (125, 700), (140, 625), (175, 500), (250, 350)]