78480880

素因数分解:

$2^4\times 5^1\times {\mathrm{981011}}^1$

素因数の和:981024

約数の個数: 20

約数和(自身を含む): 182468232

約数和(自身を除く): 103987352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 981011, 1962022, 3924044, 4905055, 7848088, 9810110, 15696176, 19620220, 39240440, 78480880]

約数ペア:

[(1, 78480880), (2, 39240440), (4, 19620220), (5, 15696176), (8, 9810110), (10, 7848088), (16, 4905055), (20, 3924044), (40, 1962022), (80, 981011)]