128260925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20771}}^1$

素因数の和:20813

約数の個数: 24

約数和(自身を含む): 180300960

約数和(自身を除く): 52040035

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 6175, 20771, 103855, 270023, 394649, 519275, 1350115, 1973245, 5130437, 6750575, 9866225, 25652185, 128260925]

約数ペア:

[(1, 128260925), (5, 25652185), (13, 9866225), (19, 6750575), (25, 5130437), (65, 1973245), (95, 1350115), (247, 519275), (325, 394649), (475, 270023), (1235, 103855), (6175, 20771)]