18172240

素因数分解:

$2^4\times 5^1\times {\mathrm{227153}}^1$

素因数の和:227166

約数の個数: 20

約数和(自身を含む): 42250644

約数和(自身を除く): 24078404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227153, 454306, 908612, 1135765, 1817224, 2271530, 3634448, 4543060, 9086120, 18172240]

約数ペア:

[(1, 18172240), (2, 9086120), (4, 4543060), (5, 3634448), (8, 2271530), (10, 1817224), (16, 1135765), (20, 908612), (40, 454306), (80, 227153)]