2649160

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 6027840

約数和(自身を除く): 3378680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 643, 824, 1030, 1286, 2060, 2572, 3215, 4120, 5144, 6430, 12860, 25720, 66229, 132458, 264916, 331145, 529832, 662290, 1324580, 2649160]

約数ペア:

[(1, 2649160), (2, 1324580), (4, 662290), (5, 529832), (8, 331145), (10, 264916), (20, 132458), (40, 66229), (103, 25720), (206, 12860), (412, 6430), (515, 5144), (643, 4120), (824, 3215), (1030, 2572), (1286, 2060)]