2181605

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 16

約数和(自身を含む): 2735040

約数和(自身を除く): 553435

約数列:

[1, 5, 43, 73, 139, 215, 365, 695, 3139, 5977, 10147, 15695, 29885, 50735, 436321, 2181605]

約数ペア:

[(1, 2181605), (5, 436321), (43, 50735), (73, 29885), (139, 15695), (215, 10147), (365, 5977), (695, 3139)]