26640400

素因数分解:

$2^4\times 5^2\times {\mathrm{66601}}^1$

素因数の和:66619

約数の個数: 30

約数和(自身を含む): 64004522

約数和(自身を除く): 37364122

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 66601, 133202, 266404, 333005, 532808, 666010, 1065616, 1332020, 1665025, 2664040, 3330050, 5328080, 6660100, 13320200, 26640400]

約数ペア:

[(1, 26640400), (2, 13320200), (4, 6660100), (5, 5328080), (8, 3330050), (10, 2664040), (16, 1665025), (20, 1332020), (25, 1065616), (40, 666010), (50, 532808), (80, 333005), (100, 266404), (200, 133202), (400, 66601)]