20647568

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30011}}^1$

素因数の和:30062

約数の個数: 20

約数和(自身を含む): 40936368

約数和(自身を除く): 20288800

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30011, 60022, 120044, 240088, 480176, 1290473, 2580946, 5161892, 10323784, 20647568]

約数ペア:

[(1, 20647568), (2, 10323784), (4, 5161892), (8, 2580946), (16, 1290473), (43, 480176), (86, 240088), (172, 120044), (344, 60022), (688, 30011)]