81192560

素因数分解:

$2^4\times 5^1\times {\mathrm{1014907}}^1$

素因数の和:1014920

約数の個数: 20

約数和(自身を含む): 188772888

約数和(自身を除く): 107580328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014907, 2029814, 4059628, 5074535, 8119256, 10149070, 16238512, 20298140, 40596280, 81192560]

約数ペア:

[(1, 81192560), (2, 40596280), (4, 20298140), (5, 16238512), (8, 10149070), (10, 8119256), (16, 5074535), (20, 4059628), (40, 2029814), (80, 1014907)]