20639500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{5897}}^1$

素因数の和:5923

約数の個数: 48

約数和(自身を含む): 51524928

約数和(自身を除く): 30885428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 5897, 11794, 23588, 29485, 41279, 58970, 82558, 117940, 147425, 165116, 206395, 294850, 412790, 589700, 737125, 825580, 1031975, 1474250, 2063950, 2948500, 4127900, 5159875, 10319750, 20639500]

約数ペア:

[(1, 20639500), (2, 10319750), (4, 5159875), (5, 4127900), (7, 2948500), (10, 2063950), (14, 1474250), (20, 1031975), (25, 825580), (28, 737125), (35, 589700), (50, 412790), (70, 294850), (100, 206395), (125, 165116), (140, 147425), (175, 117940), (250, 82558), (350, 58970), (500, 41279), (700, 29485), (875, 23588), (1750, 11794), (3500, 5897)]