13980880

素因数分解:

$2^4\times 5^1\times {\mathrm{174761}}^1$

素因数の和:174774

約数の個数: 20

約数和(自身を含む): 32505732

約数和(自身を除く): 18524852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 174761, 349522, 699044, 873805, 1398088, 1747610, 2796176, 3495220, 6990440, 13980880]

約数ペア:

[(1, 13980880), (2, 6990440), (4, 3495220), (5, 2796176), (8, 1747610), (10, 1398088), (16, 873805), (20, 699044), (40, 349522), (80, 174761)]