28864745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{63439}}^1$

素因数の和:63464

約数の個数: 16

約数和(自身を含む): 42631680

約数和(自身を除く): 13766935

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 63439, 317195, 444073, 824707, 2220365, 4123535, 5772949, 28864745]

約数ペア:

[(1, 28864745), (5, 5772949), (7, 4123535), (13, 2220365), (35, 824707), (65, 444073), (91, 317195), (455, 63439)]