1664635225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{30727}}^1$

素因数の和:30945

約数の個数: 24

約数和(自身を含む): 2263301568

約数和(自身を除く): 598666343

約数列:

[1, 5, 11, 25, 55, 197, 275, 985, 2167, 4925, 10835, 30727, 54175, 153635, 337997, 768175, 1689985, 6053219, 8449925, 30266095, 66585409, 151330475, 332927045, 1664635225]

約数ペア:

[(1, 1664635225), (5, 332927045), (11, 151330475), (25, 66585409), (55, 30266095), (197, 8449925), (275, 6053219), (985, 1689985), (2167, 768175), (4925, 337997), (10835, 153635), (30727, 54175)]