25027780

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{6991}}^1$

素因数の和:7179

約数の個数: 24

約数和(自身を含む): 52859520

約数和(自身を除く): 27831740

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 6991, 13982, 27964, 34955, 69910, 139820, 1251389, 2502778, 5005556, 6256945, 12513890, 25027780]

約数ペア:

[(1, 25027780), (2, 12513890), (4, 6256945), (5, 5005556), (10, 2502778), (20, 1251389), (179, 139820), (358, 69910), (716, 34955), (895, 27964), (1790, 13982), (3580, 6991)]