25602440

素因数分解:

$2^3\times 5^1\times {\mathrm{640061}}^1$

素因数の和:640072

約数の個数: 16

約数和(自身を含む): 57605580

約数和(自身を除く): 32003140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 640061, 1280122, 2560244, 3200305, 5120488, 6400610, 12801220, 25602440]

約数ペア:

[(1, 25602440), (2, 12801220), (4, 6400610), (5, 5120488), (8, 3200305), (10, 2560244), (20, 1280122), (40, 640061)]