72880880

素因数分解:

$2^4\times 5^1\times {\mathrm{911011}}^1$

素因数の和:911024

約数の個数: 20

約数和(自身を含む): 169448232

約数和(自身を除く): 96567352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911011, 1822022, 3644044, 4555055, 7288088, 9110110, 14576176, 18220220, 36440440, 72880880]

約数ペア:

[(1, 72880880), (2, 36440440), (4, 18220220), (5, 14576176), (8, 9110110), (10, 7288088), (16, 4555055), (20, 3644044), (40, 1822022), (80, 911011)]