388630825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{128473}}^1$

素因数の和:128505

約数の個数: 18

約数和(自身を含む): 529698302

約数和(自身を除く): 141067477

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 128473, 642365, 1413203, 3211825, 7066015, 15545233, 35330075, 77726165, 388630825]

約数ペア:

[(1, 388630825), (5, 77726165), (11, 35330075), (25, 15545233), (55, 7066015), (121, 3211825), (275, 1413203), (605, 642365), (3025, 128473)]