247705520

素因数分解:

$2^4\times 5^1\times {\mathrm{3096319}}^1$

素因数の和:3096332

約数の個数: 20

約数和(自身を含む): 575915520

約数和(自身を除く): 328210000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3096319, 6192638, 12385276, 15481595, 24770552, 30963190, 49541104, 61926380, 123852760, 247705520]

約数ペア:

[(1, 247705520), (2, 123852760), (4, 61926380), (5, 49541104), (8, 30963190), (10, 24770552), (16, 15481595), (20, 12385276), (40, 6192638), (80, 3096319)]