1305820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 2772000

約数和(自身を除く): 1466180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 599, 1090, 1198, 2180, 2396, 2995, 5990, 11980, 65291, 130582, 261164, 326455, 652910, 1305820]

約数ペア:

[(1, 1305820), (2, 652910), (4, 326455), (5, 261164), (10, 130582), (20, 65291), (109, 11980), (218, 5990), (436, 2995), (545, 2396), (599, 2180), (1090, 1198)]