12865040

素因数分解:

$2^4\times 5^1\times {\mathrm{160813}}^1$

素因数の和:160826

約数の個数: 20

約数和(自身を含む): 29911404

約数和(自身を除く): 17046364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160813, 321626, 643252, 804065, 1286504, 1608130, 2573008, 3216260, 6432520, 12865040]

約数ペア:

[(1, 12865040), (2, 6432520), (4, 3216260), (5, 2573008), (8, 1608130), (10, 1286504), (16, 804065), (20, 643252), (40, 321626), (80, 160813)]