20685064

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 19358456

約数列:

[1, 2, 4, 8, 43, 86, 157, 172, 314, 344, 383, 628, 766, 1256, 1532, 3064, 6751, 13502, 16469, 27004, 32938, 54008, 60131, 65876, 120262, 131752, 240524, 481048, 2585633, 5171266, 10342532, 20685064]

約数ペア:

[(1, 20685064), (2, 10342532), (4, 5171266), (8, 2585633), (43, 481048), (86, 240524), (157, 131752), (172, 120262), (314, 65876), (344, 60131), (383, 54008), (628, 32938), (766, 27004), (1256, 16469), (1532, 13502), (3064, 6751)]