20714800

素因数分解:

$2^4\times 5^2\times {\mathrm{51787}}^1$

素因数の和:51805

約数の個数: 30

約数和(自身を含む): 49768268

約数和(自身を除く): 29053468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51787, 103574, 207148, 258935, 414296, 517870, 828592, 1035740, 1294675, 2071480, 2589350, 4142960, 5178700, 10357400, 20714800]

約数ペア:

[(1, 20714800), (2, 10357400), (4, 5178700), (5, 4142960), (8, 2589350), (10, 2071480), (16, 1294675), (20, 1035740), (25, 828592), (40, 517870), (50, 414296), (80, 258935), (100, 207148), (200, 103574), (400, 51787)]