128528270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{3847}}^1$

素因数の和:4124

約数の個数: 32

約数和(自身を含む): 250181568

約数和(自身を除く): 121653298

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2570, 3341, 3847, 6682, 7694, 16705, 19235, 33410, 38470, 50011, 100022, 250055, 500110, 988679, 1977358, 4943395, 9886790, 12852827, 25705654, 64264135, 128528270]

約数ペア:

[(1, 128528270), (2, 64264135), (5, 25705654), (10, 12852827), (13, 9886790), (26, 4943395), (65, 1977358), (130, 988679), (257, 500110), (514, 250055), (1285, 100022), (2570, 50011), (3341, 38470), (3847, 33410), (6682, 19235), (7694, 16705)]