20209504

素因数分解:

$2^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1087}}^1$

素因数の和:1187

約数の個数: 48

約数和(自身を含む): 46061568

約数和(自身を除く): 25852064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 83, 112, 166, 224, 332, 581, 664, 1087, 1162, 1328, 2174, 2324, 2656, 4348, 4648, 7609, 8696, 9296, 15218, 17392, 18592, 30436, 34784, 60872, 90221, 121744, 180442, 243488, 360884, 631547, 721768, 1263094, 1443536, 2526188, 2887072, 5052376, 10104752, 20209504]

約数ペア:

[(1, 20209504), (2, 10104752), (4, 5052376), (7, 2887072), (8, 2526188), (14, 1443536), (16, 1263094), (28, 721768), (32, 631547), (56, 360884), (83, 243488), (112, 180442), (166, 121744), (224, 90221), (332, 60872), (581, 34784), (664, 30436), (1087, 18592), (1162, 17392), (1328, 15218), (2174, 9296), (2324, 8696), (2656, 7609), (4348, 4648)]