51374800

素因数分解:

$2^4\times 5^2\times {\mathrm{128437}}^1$

素因数の和:128455

約数の個数: 30

約数和(自身を含む): 123428918

約数和(自身を除く): 72054118

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128437, 256874, 513748, 642185, 1027496, 1284370, 2054992, 2568740, 3210925, 5137480, 6421850, 10274960, 12843700, 25687400, 51374800]

約数ペア:

[(1, 51374800), (2, 25687400), (4, 12843700), (5, 10274960), (8, 6421850), (10, 5137480), (16, 3210925), (20, 2568740), (25, 2054992), (40, 1284370), (50, 1027496), (80, 642185), (100, 513748), (200, 256874), (400, 128437)]