20986000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{1499}}^1$

素因数の和:1529

約数の個数: 80

約数和(自身を含む): 58032000

約数和(自身を除く): 37046000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1499, 1750, 2000, 2800, 2998, 3500, 5996, 7000, 7495, 10493, 11992, 14000, 14990, 20986, 23984, 29980, 37475, 41972, 52465, 59960, 74950, 83944, 104930, 119920, 149900, 167888, 187375, 209860, 262325, 299800, 374750, 419720, 524650, 599600, 749500, 839440, 1049300, 1311625, 1499000, 2098600, 2623250, 2998000, 4197200, 5246500, 10493000, 20986000]

約数ペア:

[(1, 20986000), (2, 10493000), (4, 5246500), (5, 4197200), (7, 2998000), (8, 2623250), (10, 2098600), (14, 1499000), (16, 1311625), (20, 1049300), (25, 839440), (28, 749500), (35, 599600), (40, 524650), (50, 419720), (56, 374750), (70, 299800), (80, 262325), (100, 209860), (112, 187375), (125, 167888), (140, 149900), (175, 119920), (200, 104930), (250, 83944), (280, 74950), (350, 59960), (400, 52465), (500, 41972), (560, 37475), (700, 29980), (875, 23984), (1000, 20986), (1400, 14990), (1499, 14000), (1750, 11992), (2000, 10493), (2800, 7495), (2998, 7000), (3500, 5996)]