289301180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2066437}}^1$

素因数の和:2066453

約数の個数: 24

約数和(自身を含む): 694323168

約数和(自身を除く): 405021988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2066437, 4132874, 8265748, 10332185, 14465059, 20664370, 28930118, 41328740, 57860236, 72325295, 144650590, 289301180]

約数ペア:

[(1, 289301180), (2, 144650590), (4, 72325295), (5, 57860236), (7, 41328740), (10, 28930118), (14, 20664370), (20, 14465059), (28, 10332185), (35, 8265748), (70, 4132874), (140, 2066437)]