66240880

素因数分解:

$2^4\times 5^1\times {\mathrm{828011}}^1$

素因数の和:828024

約数の個数: 20

約数和(自身を含む): 154010232

約数和(自身を除く): 87769352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 828011, 1656022, 3312044, 4140055, 6624088, 8280110, 13248176, 16560220, 33120440, 66240880]

約数ペア:

[(1, 66240880), (2, 33120440), (4, 16560220), (5, 13248176), (8, 8280110), (10, 6624088), (16, 4140055), (20, 3312044), (40, 1656022), (80, 828011)]