28754800

素因数分解:

$2^4\times 5^2\times {\mathrm{71887}}^1$

素因数の和:71905

約数の個数: 30

約数和(自身を含む): 69084368

約数和(自身を除く): 40329568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71887, 143774, 287548, 359435, 575096, 718870, 1150192, 1437740, 1797175, 2875480, 3594350, 5750960, 7188700, 14377400, 28754800]

約数ペア:

[(1, 28754800), (2, 14377400), (4, 7188700), (5, 5750960), (8, 3594350), (10, 2875480), (16, 1797175), (20, 1437740), (25, 1150192), (40, 718870), (50, 575096), (80, 359435), (100, 287548), (200, 143774), (400, 71887)]