20880152

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63659}}^1$

素因数の和:63706

約数の個数: 16

約数和(自身を含む): 40105800

約数和(自身を除く): 19225648

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63659, 127318, 254636, 509272, 2610019, 5220038, 10440076, 20880152]

約数ペア:

[(1, 20880152), (2, 10440076), (4, 5220038), (8, 2610019), (41, 509272), (82, 254636), (164, 127318), (328, 63659)]