128515325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4259}}^1$

素因数の和:4357

約数の個数: 24

約数和(自身を含む): 171149760

約数和(自身を除く): 42634435

約数列:

[1, 5, 17, 25, 71, 85, 355, 425, 1207, 1775, 4259, 6035, 21295, 30175, 72403, 106475, 302389, 362015, 1511945, 1810075, 5140613, 7559725, 25703065, 128515325]

約数ペア:

[(1, 128515325), (5, 25703065), (17, 7559725), (25, 5140613), (71, 1810075), (85, 1511945), (355, 362015), (425, 302389), (1207, 106475), (1775, 72403), (4259, 30175), (6035, 21295)]