216860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1549}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 520800

約数和(自身を除く): 303940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1549, 3098, 6196, 7745, 10843, 15490, 21686, 30980, 43372, 54215, 108430, 216860]

約数ペア:

[(1, 216860), (2, 108430), (4, 54215), (5, 43372), (7, 30980), (10, 21686), (14, 15490), (20, 10843), (28, 7745), (35, 6196), (70, 3098), (140, 1549)]