20900500

素因数分解:

$2^2\times 5^3\times {\mathrm{41801}}^1$

素因数の和:41820

約数の個数: 24

約数和(自身を含む): 45647784

約数和(自身を除く): 24747284

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 41801, 83602, 167204, 209005, 418010, 836020, 1045025, 2090050, 4180100, 5225125, 10450250, 20900500]

約数ペア:

[(1, 20900500), (2, 10450250), (4, 5225125), (5, 4180100), (10, 2090050), (20, 1045025), (25, 836020), (50, 418010), (100, 209005), (125, 167204), (250, 83602), (500, 41801)]