12906220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{28057}}^1$

素因数の和:28089

約数の個数: 24

約数和(自身を含む): 28282464

約数和(自身を除く): 15376244

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 28057, 56114, 112228, 140285, 280570, 561140, 645311, 1290622, 2581244, 3226555, 6453110, 12906220]

約数ペア:

[(1, 12906220), (2, 6453110), (4, 3226555), (5, 2581244), (10, 1290622), (20, 645311), (23, 561140), (46, 280570), (92, 140285), (115, 112228), (230, 56114), (460, 28057)]