20822800

素因数分解:

$2^4\times 5^2\times {\mathrm{52057}}^1$

素因数の和:52075

約数の個数: 30

約数和(自身を含む): 50027738

約数和(自身を除く): 29204938

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52057, 104114, 208228, 260285, 416456, 520570, 832912, 1041140, 1301425, 2082280, 2602850, 4164560, 5205700, 10411400, 20822800]

約数ペア:

[(1, 20822800), (2, 10411400), (4, 5205700), (5, 4164560), (8, 2602850), (10, 2082280), (16, 1301425), (20, 1041140), (25, 832912), (40, 520570), (50, 416456), (80, 260285), (100, 208228), (200, 104114), (400, 52057)]