20159800

素因数分解:

$2^3\times 5^2\times {\mathrm{100799}}^1$

素因数の和:100815

約数の個数: 24

約数和(自身を含む): 46872000

約数和(自身を除く): 26712200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100799, 201598, 403196, 503995, 806392, 1007990, 2015980, 2519975, 4031960, 5039950, 10079900, 20159800]

約数ペア:

[(1, 20159800), (2, 10079900), (4, 5039950), (5, 4031960), (8, 2519975), (10, 2015980), (20, 1007990), (25, 806392), (40, 503995), (50, 403196), (100, 201598), (200, 100799)]