81024880

素因数分解:

$2^4\times 5^1\times {\mathrm{1012811}}^1$

素因数の和:1012824

約数の個数: 20

約数和(自身を含む): 188383032

約数和(自身を除く): 107358152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1012811, 2025622, 4051244, 5064055, 8102488, 10128110, 16204976, 20256220, 40512440, 81024880]

約数ペア:

[(1, 81024880), (2, 40512440), (4, 20256220), (5, 16204976), (8, 10128110), (10, 8102488), (16, 5064055), (20, 4051244), (40, 2025622), (80, 1012811)]