20558900

素因数分解:

$2^2\times 5^2\times {\mathrm{205589}}^1$

素因数の和:205603

約数の個数: 18

約数和(自身を含む): 44613030

約数和(自身を除く): 24054130

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 205589, 411178, 822356, 1027945, 2055890, 4111780, 5139725, 10279450, 20558900]

約数ペア:

[(1, 20558900), (2, 10279450), (4, 5139725), (5, 4111780), (10, 2055890), (20, 1027945), (25, 822356), (50, 411178), (100, 205589)]