51512724400

素因数分解:

$2^4\times 5^2\times {\mathrm{128781811}}^1$

素因数の和:128781829

約数の個数: 30

約数和(自身を含む): 123759321332

約数和(自身を除く): 72246596932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128781811, 257563622, 515127244, 643909055, 1030254488, 1287818110, 2060508976, 2575636220, 3219545275, 5151272440, 6439090550, 10302544880, 12878181100, 25756362200, 51512724400]

約数ペア:

[(1, 51512724400), (2, 25756362200), (4, 12878181100), (5, 10302544880), (8, 6439090550), (10, 5151272440), (16, 3219545275), (20, 2575636220), (25, 2060508976), (40, 1287818110), (50, 1030254488), (80, 643909055), (100, 515127244), (200, 257563622), (400, 128781811)]