51183920

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2549}}^1$

素因数の和:2813

約数の個数: 40

約数和(自身を含む): 119523600

約数和(自身を除く): 68339680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 2549, 4016, 5020, 5098, 10040, 10196, 12745, 20080, 20392, 25490, 40784, 50980, 101960, 203920, 639799, 1279598, 2559196, 3198995, 5118392, 6397990, 10236784, 12795980, 25591960, 51183920]

約数ペア:

[(1, 51183920), (2, 25591960), (4, 12795980), (5, 10236784), (8, 6397990), (10, 5118392), (16, 3198995), (20, 2559196), (40, 1279598), (80, 639799), (251, 203920), (502, 101960), (1004, 50980), (1255, 40784), (2008, 25490), (2510, 20392), (2549, 20080), (4016, 12745), (5020, 10196), (5098, 10040)]