20854865

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 25919040

約数和(自身を除く): 5064175

約数列:

[1, 5, 37, 139, 185, 695, 811, 4055, 5143, 25715, 30007, 112729, 150035, 563645, 4170973, 20854865]

約数ペア:

[(1, 20854865), (5, 4170973), (37, 563645), (139, 150035), (185, 112729), (695, 30007), (811, 25715), (4055, 5143)]