13120880

素因数分解:

$2^4\times 5^1\times {\mathrm{164011}}^1$

素因数の和:164024

約数の個数: 20

約数和(自身を含む): 30506232

約数和(自身を除く): 17385352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164011, 328022, 656044, 820055, 1312088, 1640110, 2624176, 3280220, 6560440, 13120880]

約数ペア:

[(1, 13120880), (2, 6560440), (4, 3280220), (5, 2624176), (8, 1640110), (10, 1312088), (16, 820055), (20, 656044), (40, 328022), (80, 164011)]