21919600

素因数分解:

$2^4\times 5^2\times {\mathrm{54799}}^1$

素因数の和:54817

約数の個数: 30

約数和(自身を含む): 52662800

約数和(自身を除く): 30743200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54799, 109598, 219196, 273995, 438392, 547990, 876784, 1095980, 1369975, 2191960, 2739950, 4383920, 5479900, 10959800, 21919600]

約数ペア:

[(1, 21919600), (2, 10959800), (4, 5479900), (5, 4383920), (8, 2739950), (10, 2191960), (16, 1369975), (20, 1095980), (25, 876784), (40, 547990), (50, 438392), (80, 273995), (100, 219196), (200, 109598), (400, 54799)]