20428912

素因数分解:

$2^4\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1019}}^1$

素因数の和:1213

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 25103888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 179, 358, 716, 1019, 1253, 1432, 2038, 2506, 2864, 4076, 5012, 7133, 8152, 10024, 14266, 16304, 20048, 28532, 57064, 114128, 182401, 364802, 729604, 1276807, 1459208, 2553614, 2918416, 5107228, 10214456, 20428912]

約数ペア:

[(1, 20428912), (2, 10214456), (4, 5107228), (7, 2918416), (8, 2553614), (14, 1459208), (16, 1276807), (28, 729604), (56, 364802), (112, 182401), (179, 114128), (358, 57064), (716, 28532), (1019, 20048), (1253, 16304), (1432, 14266), (2038, 10024), (2506, 8152), (2864, 7133), (4076, 5012)]