16189975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 21047760

約数和(自身を除く): 4857785

約数列:

[1, 5, 25, 29, 137, 145, 163, 685, 725, 815, 3425, 3973, 4075, 4727, 19865, 22331, 23635, 99325, 111655, 118175, 558275, 647599, 3237995, 16189975]

約数ペア:

[(1, 16189975), (5, 3237995), (25, 647599), (29, 558275), (137, 118175), (145, 111655), (163, 99325), (685, 23635), (725, 22331), (815, 19865), (3425, 4727), (3973, 4075)]