68631220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490223}}^1$

素因数の和:490239

約数の個数: 24

約数和(自身を含む): 164715264

約数和(自身を除く): 96084044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490223, 980446, 1960892, 2451115, 3431561, 4902230, 6863122, 9804460, 13726244, 17157805, 34315610, 68631220]

約数ペア:

[(1, 68631220), (2, 34315610), (4, 17157805), (5, 13726244), (7, 9804460), (10, 6863122), (14, 4902230), (20, 3431561), (28, 2451115), (35, 1960892), (70, 980446), (140, 490223)]