2505820

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{359}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 5292000

約数和(自身を除く): 2786180

約数列:

[1, 2, 4, 5, 10, 20, 349, 359, 698, 718, 1396, 1436, 1745, 1795, 3490, 3590, 6980, 7180, 125291, 250582, 501164, 626455, 1252910, 2505820]

約数ペア:

[(1, 2505820), (2, 1252910), (4, 626455), (5, 501164), (10, 250582), (20, 125291), (349, 7180), (359, 6980), (698, 3590), (718, 3490), (1396, 1795), (1436, 1745)]