1380280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3137}}^1$

素因数の和:3159

約数の個数: 32

約数和(自身を含む): 3389040

約数和(自身を除く): 2008760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3137, 6274, 12548, 15685, 25096, 31370, 34507, 62740, 69014, 125480, 138028, 172535, 276056, 345070, 690140, 1380280]

約数ペア:

[(1, 1380280), (2, 690140), (4, 345070), (5, 276056), (8, 172535), (10, 138028), (11, 125480), (20, 69014), (22, 62740), (40, 34507), (44, 31370), (55, 25096), (88, 15685), (110, 12548), (220, 6274), (440, 3137)]