20753264

素因数分解:

$2^4\times 7^2\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:382

約数の個数: 60

約数和(自身を含む): 47412144

約数和(自身を除く): 26658880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 103, 112, 196, 206, 257, 392, 412, 514, 721, 784, 824, 1028, 1442, 1648, 1799, 2056, 2884, 3598, 4112, 5047, 5768, 7196, 10094, 11536, 12593, 14392, 20188, 25186, 26471, 28784, 40376, 50372, 52942, 80752, 100744, 105884, 185297, 201488, 211768, 370594, 423536, 741188, 1297079, 1482376, 2594158, 2964752, 5188316, 10376632, 20753264]

約数ペア:

[(1, 20753264), (2, 10376632), (4, 5188316), (7, 2964752), (8, 2594158), (14, 1482376), (16, 1297079), (28, 741188), (49, 423536), (56, 370594), (98, 211768), (103, 201488), (112, 185297), (196, 105884), (206, 100744), (257, 80752), (392, 52942), (412, 50372), (514, 40376), (721, 28784), (784, 26471), (824, 25186), (1028, 20188), (1442, 14392), (1648, 12593), (1799, 11536), (2056, 10094), (2884, 7196), (3598, 5768), (4112, 5047)]