25591960

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2549}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 57834000

約数和(自身を除く): 32242040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 2549, 5020, 5098, 10040, 10196, 12745, 20392, 25490, 50980, 101960, 639799, 1279598, 2559196, 3198995, 5118392, 6397990, 12795980, 25591960]

約数ペア:

[(1, 25591960), (2, 12795980), (4, 6397990), (5, 5118392), (8, 3198995), (10, 2559196), (20, 1279598), (40, 639799), (251, 101960), (502, 50980), (1004, 25490), (1255, 20392), (2008, 12745), (2510, 10196), (2549, 10040), (5020, 5098)]