2009404865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{657743}}^1$

素因数の和:657808

約数の個数: 16

約数和(自身を含む): 2652023808

約数和(自身を除く): 642618943

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 657743, 3288715, 8550659, 30913921, 42753295, 154569605, 401880973, 2009404865]

約数ペア:

[(1, 2009404865), (5, 401880973), (13, 154569605), (47, 42753295), (65, 30913921), (235, 8550659), (611, 3288715), (3055, 657743)]