20679800

素因数分解:

$2^3\times 5^2\times {\mathrm{103399}}^1$

素因数の和:103415

約数の個数: 24

約数和(自身を含む): 48081000

約数和(自身を除く): 27401200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 103399, 206798, 413596, 516995, 827192, 1033990, 2067980, 2584975, 4135960, 5169950, 10339900, 20679800]

約数ペア:

[(1, 20679800), (2, 10339900), (4, 5169950), (5, 4135960), (8, 2584975), (10, 2067980), (20, 1033990), (25, 827192), (40, 516995), (50, 413596), (100, 206798), (200, 103399)]