1279460080

素因数分解:

$2^4\times 5^1\times {\mathrm{15993251}}^1$

素因数の和:15993264

約数の個数: 20

約数和(自身を含む): 2974744872

約数和(自身を除く): 1695284792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15993251, 31986502, 63973004, 79966255, 127946008, 159932510, 255892016, 319865020, 639730040, 1279460080]

約数ペア:

[(1, 1279460080), (2, 639730040), (4, 319865020), (5, 255892016), (8, 159932510), (10, 127946008), (16, 79966255), (20, 63973004), (40, 31986502), (80, 15993251)]