51042800

素因数分解:

$2^4\times 5^2\times {\mathrm{127607}}^1$

素因数の和:127625

約数の個数: 30

約数和(自身を含む): 122631288

約数和(自身を除く): 71588488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 127607, 255214, 510428, 638035, 1020856, 1276070, 2041712, 2552140, 3190175, 5104280, 6380350, 10208560, 12760700, 25521400, 51042800]

約数ペア:

[(1, 51042800), (2, 25521400), (4, 12760700), (5, 10208560), (8, 6380350), (10, 5104280), (16, 3190175), (20, 2552140), (25, 2041712), (40, 1276070), (50, 1020856), (80, 638035), (100, 510428), (200, 255214), (400, 127607)]