154804280

素因数分解:

$2^3\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{2137}}^1$

素因数の和:3959

約数の個数: 32

約数和(自身を含む): 348665040

約数和(自身を除く): 193860760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1811, 2137, 3622, 4274, 7244, 8548, 9055, 10685, 14488, 17096, 18110, 21370, 36220, 42740, 72440, 85480, 3870107, 7740214, 15480428, 19350535, 30960856, 38701070, 77402140, 154804280]

約数ペア:

[(1, 154804280), (2, 77402140), (4, 38701070), (5, 30960856), (8, 19350535), (10, 15480428), (20, 7740214), (40, 3870107), (1811, 85480), (2137, 72440), (3622, 42740), (4274, 36220), (7244, 21370), (8548, 18110), (9055, 17096), (10685, 14488)]