201980405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{8179}}^1$

素因数の和:8644

約数の個数: 16

約数和(自身を含む): 265032000

約数和(自身を除く): 63051595

約数列:

[1, 5, 11, 55, 449, 2245, 4939, 8179, 24695, 40895, 89969, 449845, 3672371, 18361855, 40396081, 201980405]

約数ペア:

[(1, 201980405), (5, 40396081), (11, 18361855), (55, 3672371), (449, 449845), (2245, 89969), (4939, 40895), (8179, 24695)]