25513904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122663}}^1$

素因数の和:122684

約数の個数: 20

約数和(自身を含む): 53236176

約数和(自身を除く): 27722272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122663, 245326, 490652, 981304, 1594619, 1962608, 3189238, 6378476, 12756952, 25513904]

約数ペア:

[(1, 25513904), (2, 12756952), (4, 6378476), (8, 3189238), (13, 1962608), (16, 1594619), (26, 981304), (52, 490652), (104, 245326), (208, 122663)]