213473650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{328421}}^1$

素因数の和:328446

約数の個数: 24

約数和(自身を含む): 427605444

約数和(自身を除く): 214131794

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 328421, 656842, 1642105, 3284210, 4269473, 8210525, 8538946, 16421050, 21347365, 42694730, 106736825, 213473650]

約数ペア:

[(1, 213473650), (2, 106736825), (5, 42694730), (10, 21347365), (13, 16421050), (25, 8538946), (26, 8210525), (50, 4269473), (65, 3284210), (130, 1642105), (325, 656842), (650, 328421)]