209431740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{498647}}^1$

素因数の和:498666

約数の個数: 48

約数和(自身を含む): 670182912

約数和(自身を除く): 460751172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 498647, 997294, 1495941, 1994588, 2493235, 2991882, 3490529, 4986470, 5983764, 6981058, 7479705, 9972940, 10471587, 13962116, 14959410, 17452645, 20943174, 29918820, 34905290, 41886348, 52357935, 69810580, 104715870, 209431740]

約数ペア:

[(1, 209431740), (2, 104715870), (3, 69810580), (4, 52357935), (5, 41886348), (6, 34905290), (7, 29918820), (10, 20943174), (12, 17452645), (14, 14959410), (15, 13962116), (20, 10471587), (21, 9972940), (28, 7479705), (30, 6981058), (35, 5983764), (42, 4986470), (60, 3490529), (70, 2991882), (84, 2493235), (105, 1994588), (140, 1495941), (210, 997294), (420, 498647)]