139692980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{997807}}^1$

素因数の和:997823

約数の個数: 24

約数和(自身を含む): 335263488

約数和(自身を除く): 195570508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 997807, 1995614, 3991228, 4989035, 6984649, 9978070, 13969298, 19956140, 27938596, 34923245, 69846490, 139692980]

約数ペア:

[(1, 139692980), (2, 69846490), (4, 34923245), (5, 27938596), (7, 19956140), (10, 13969298), (14, 9978070), (20, 6984649), (28, 4989035), (35, 3991228), (70, 1995614), (140, 997807)]