25861340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11863}}^1$

素因数の和:11981

約数の個数: 24

約数和(自身を含む): 54811680

約数和(自身を除く): 28950340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 11863, 23726, 47452, 59315, 118630, 237260, 1293067, 2586134, 5172268, 6465335, 12930670, 25861340]

約数ペア:

[(1, 25861340), (2, 12930670), (4, 6465335), (5, 5172268), (10, 2586134), (20, 1293067), (109, 237260), (218, 118630), (436, 59315), (545, 47452), (1090, 23726), (2180, 11863)]