20512247296

素因数分解:

$2^9\times {\mathrm{103}}^1\times {\mathrm{388961}}^1$

素因数の和:389082

約数の個数: 40

約数和(自身を含む): 41382445104

約数和(自身を除く): 20870197808

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 412, 512, 824, 1648, 3296, 6592, 13184, 26368, 52736, 388961, 777922, 1555844, 3111688, 6223376, 12446752, 24893504, 40062983, 49787008, 80125966, 99574016, 160251932, 199148032, 320503864, 641007728, 1282015456, 2564030912, 5128061824, 10256123648, 20512247296]

約数ペア:

[(1, 20512247296), (2, 10256123648), (4, 5128061824), (8, 2564030912), (16, 1282015456), (32, 641007728), (64, 320503864), (103, 199148032), (128, 160251932), (206, 99574016), (256, 80125966), (412, 49787008), (512, 40062983), (824, 24893504), (1648, 12446752), (3296, 6223376), (6592, 3111688), (13184, 1555844), (26368, 777922), (52736, 388961)]