21255800

素因数分解:

$2^3\times 5^2\times {\mathrm{106279}}^1$

素因数の和:106295

約数の個数: 24

約数和(自身を含む): 49420200

約数和(自身を除く): 28164400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 106279, 212558, 425116, 531395, 850232, 1062790, 2125580, 2656975, 4251160, 5313950, 10627900, 21255800]

約数ペア:

[(1, 21255800), (2, 10627900), (4, 5313950), (5, 4251160), (8, 2656975), (10, 2125580), (20, 1062790), (25, 850232), (40, 531395), (50, 425116), (100, 212558), (200, 106279)]