1278720050

素因数分解:

$2^1\times 5^2\times {\mathrm{25574401}}^1$

素因数の和:25574413

約数の個数: 12

約数和(自身を含む): 2378419386

約数和(自身を除く): 1099699336

約数列:

[1, 2, 5, 10, 25, 50, 25574401, 51148802, 127872005, 255744010, 639360025, 1278720050]

約数ペア:

[(1, 1278720050), (2, 639360025), (5, 255744010), (10, 127872005), (25, 51148802), (50, 25574401)]