131460080

素因数分解:

$2^4\times 5^1\times {\mathrm{1643251}}^1$

素因数の和:1643264

約数の個数: 20

約数和(自身を含む): 305644872

約数和(自身を除く): 174184792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1643251, 3286502, 6573004, 8216255, 13146008, 16432510, 26292016, 32865020, 65730040, 131460080]

約数ペア:

[(1, 131460080), (2, 65730040), (4, 32865020), (5, 26292016), (8, 16432510), (10, 13146008), (16, 8216255), (20, 6573004), (40, 3286502), (80, 1643251)]