66560660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 143270400

約数和(自身を除く): 76709740

約数列:

[1, 2, 4, 5, 10, 20, 79, 103, 158, 206, 316, 395, 409, 412, 515, 790, 818, 1030, 1580, 1636, 2045, 2060, 4090, 8137, 8180, 16274, 32311, 32548, 40685, 42127, 64622, 81370, 84254, 129244, 161555, 162740, 168508, 210635, 323110, 421270, 646220, 842540, 3328033, 6656066, 13312132, 16640165, 33280330, 66560660]

約数ペア:

[(1, 66560660), (2, 33280330), (4, 16640165), (5, 13312132), (10, 6656066), (20, 3328033), (79, 842540), (103, 646220), (158, 421270), (206, 323110), (316, 210635), (395, 168508), (409, 162740), (412, 161555), (515, 129244), (790, 84254), (818, 81370), (1030, 64622), (1580, 42127), (1636, 40685), (2045, 32548), (2060, 32311), (4090, 16274), (8137, 8180)]