28381121890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2898991}}^1$

素因数の和:2899098

約数の個数: 32

約数和(自身を含む): 56356404480

約数和(自身を除く): 27975282590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 2898991, 5797982, 14494955, 28989910, 31888901, 63777802, 159444505, 258010199, 318889010, 516020398, 1290050995, 2580101990, 2838112189, 5676224378, 14190560945, 28381121890]

約数ペア:

[(1, 28381121890), (2, 14190560945), (5, 5676224378), (10, 2838112189), (11, 2580101990), (22, 1290050995), (55, 516020398), (89, 318889010), (110, 258010199), (178, 159444505), (445, 63777802), (890, 31888901), (979, 28989910), (1958, 14494955), (4895, 5797982), (9790, 2898991)]