201782385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640579}}^1$

素因数の和:640597

約数の個数: 24

約数和(自身を含む): 399721920

約数和(自身を除く): 197939535

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640579, 1921737, 3202895, 4484053, 5765211, 9608685, 13452159, 22420265, 28826055, 40356477, 67260795, 201782385]

約数ペア:

[(1, 201782385), (3, 67260795), (5, 40356477), (7, 28826055), (9, 22420265), (15, 13452159), (21, 9608685), (35, 5765211), (45, 4484053), (63, 3202895), (105, 1921737), (315, 640579)]