28147760

素因数分解:

$2^4\times 5^1\times {\mathrm{351847}}^1$

素因数の和:351860

約数の個数: 20

約数和(自身を含む): 65443728

約数和(自身を除く): 37295968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351847, 703694, 1407388, 1759235, 2814776, 3518470, 5629552, 7036940, 14073880, 28147760]

約数ペア:

[(1, 28147760), (2, 14073880), (4, 7036940), (5, 5629552), (8, 3518470), (10, 2814776), (16, 1759235), (20, 1407388), (40, 703694), (80, 351847)]