20993000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2999}}^1$

素因数の和:3027

約数の個数: 64

約数和(自身を含む): 56160000

約数和(自身を除く): 35167000

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, 2999, 3500, 5998, 7000, 11996, 14995, 20993, 23992, 29990, 41986, 59980, 74975, 83972, 104965, 119960, 149950, 167944, 209930, 299900, 374875, 419860, 524825, 599800, 749750, 839720, 1049650, 1499500, 2099300, 2624125, 2999000, 4198600, 5248250, 10496500, 20993000]

約数ペア:

[(1, 20993000), (2, 10496500), (4, 5248250), (5, 4198600), (7, 2999000), (8, 2624125), (10, 2099300), (14, 1499500), (20, 1049650), (25, 839720), (28, 749750), (35, 599800), (40, 524825), (50, 419860), (56, 374875), (70, 299900), (100, 209930), (125, 167944), (140, 149950), (175, 119960), (200, 104965), (250, 83972), (280, 74975), (350, 59980), (500, 41986), (700, 29990), (875, 23992), (1000, 20993), (1400, 14995), (1750, 11996), (2999, 7000), (3500, 5998)]