20279000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2897}}^1$

素因数の和:2925

約数の個数: 64

約数和(自身を含む): 54250560

約数和(自身を除く): 33971560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 2897, 3500, 5794, 7000, 11588, 14485, 20279, 23176, 28970, 40558, 57940, 72425, 81116, 101395, 115880, 144850, 162232, 202790, 289700, 362125, 405580, 506975, 579400, 724250, 811160, 1013950, 1448500, 2027900, 2534875, 2897000, 4055800, 5069750, 10139500, 20279000]

約数ペア:

[(1, 20279000), (2, 10139500), (4, 5069750), (5, 4055800), (7, 2897000), (8, 2534875), (10, 2027900), (14, 1448500), (20, 1013950), (25, 811160), (28, 724250), (35, 579400), (40, 506975), (50, 405580), (56, 362125), (70, 289700), (100, 202790), (125, 162232), (140, 144850), (175, 115880), (200, 101395), (250, 81116), (280, 72425), (350, 57940), (500, 40558), (700, 28970), (875, 23176), (1000, 20279), (1400, 14485), (1750, 11588), (2897, 7000), (3500, 5794)]