20256208

素因数分解:

$2^4\times 7^3\times {\mathrm{3691}}^1$

素因数の和:3720

約数の個数: 40

約数和(自身を含む): 45780800

約数和(自身を除く): 25524592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3691, 5488, 7382, 14764, 25837, 29528, 51674, 59056, 103348, 180859, 206696, 361718, 413392, 723436, 1266013, 1446872, 2532026, 2893744, 5064052, 10128104, 20256208]

約数ペア:

[(1, 20256208), (2, 10128104), (4, 5064052), (7, 2893744), (8, 2532026), (14, 1446872), (16, 1266013), (28, 723436), (49, 413392), (56, 361718), (98, 206696), (112, 180859), (196, 103348), (343, 59056), (392, 51674), (686, 29528), (784, 25837), (1372, 14764), (2744, 7382), (3691, 5488)]