19985720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26297}}^1$

素因数の和:26327

約数の個数: 32

約数和(自身を含む): 47336400

約数和(自身を除く): 27350680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26297, 52594, 105188, 131485, 210376, 262970, 499643, 525940, 999286, 1051880, 1998572, 2498215, 3997144, 4996430, 9992860, 19985720]

約数ペア:

[(1, 19985720), (2, 9992860), (4, 4996430), (5, 3997144), (8, 2498215), (10, 1998572), (19, 1051880), (20, 999286), (38, 525940), (40, 499643), (76, 262970), (95, 210376), (152, 131485), (190, 105188), (380, 52594), (760, 26297)]