30505520

素因数分解:

$2^4\times 5^1\times {\mathrm{381319}}^1$

素因数の和:381332

約数の個数: 20

約数和(自身を含む): 70925520

約数和(自身を除く): 40420000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 381319, 762638, 1525276, 1906595, 3050552, 3813190, 6101104, 7626380, 15252760, 30505520]

約数ペア:

[(1, 30505520), (2, 15252760), (4, 7626380), (5, 6101104), (8, 3813190), (10, 3050552), (16, 1906595), (20, 1525276), (40, 762638), (80, 381319)]