68728940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490921}}^1$

素因数の和:490937

約数の個数: 24

約数和(自身を含む): 164949792

約数和(自身を除く): 96220852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490921, 981842, 1963684, 2454605, 3436447, 4909210, 6872894, 9818420, 13745788, 17182235, 34364470, 68728940]

約数ペア:

[(1, 68728940), (2, 34364470), (4, 17182235), (5, 13745788), (7, 9818420), (10, 6872894), (14, 4909210), (20, 3436447), (28, 2454605), (35, 1963684), (70, 981842), (140, 490921)]