25143988

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 45440640

約数和(自身を除く): 20296652

約数列:

[1, 2, 4, 41, 82, 139, 164, 278, 556, 1103, 2206, 4412, 5699, 11398, 22796, 45223, 90446, 153317, 180892, 306634, 613268, 6285997, 12571994, 25143988]

約数ペア:

[(1, 25143988), (2, 12571994), (4, 6285997), (41, 613268), (82, 306634), (139, 180892), (164, 153317), (278, 90446), (556, 45223), (1103, 22796), (2206, 11398), (4412, 5699)]