20128256

素因数分解:

$2^9\times {\mathrm{39313}}^1$

素因数の和:39331

約数の個数: 20

約数和(自身を含む): 40218222

約数和(自身を除く): 20089966

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39313, 78626, 157252, 314504, 629008, 1258016, 2516032, 5032064, 10064128, 20128256]

約数ペア:

[(1, 20128256), (2, 10064128), (4, 5032064), (8, 2516032), (16, 1258016), (32, 629008), (64, 314504), (128, 157252), (256, 78626), (512, 39313)]