20616520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27127}}^1$

素因数の和:27157

約数の個数: 32

約数和(自身を含む): 48830400

約数和(自身を除く): 28213880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27127, 54254, 108508, 135635, 217016, 271270, 515413, 542540, 1030826, 1085080, 2061652, 2577065, 4123304, 5154130, 10308260, 20616520]

約数ペア:

[(1, 20616520), (2, 10308260), (4, 5154130), (5, 4123304), (8, 2577065), (10, 2061652), (19, 1085080), (20, 1030826), (38, 542540), (40, 515413), (76, 271270), (95, 217016), (152, 135635), (190, 108508), (380, 54254), (760, 27127)]