28206220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201473}}^1$

素因数の和:201489

約数の個数: 24

約数和(自身を含む): 67695264

約数和(自身を除く): 39489044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201473, 402946, 805892, 1007365, 1410311, 2014730, 2820622, 4029460, 5641244, 7051555, 14103110, 28206220]

約数ペア:

[(1, 28206220), (2, 14103110), (4, 7051555), (5, 5641244), (7, 4029460), (10, 2820622), (14, 2014730), (20, 1410311), (28, 1007365), (35, 805892), (70, 402946), (140, 201473)]