28242920

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2549}}^1$

素因数の和:2837

約数の個数: 32

約数和(自身を含む): 63801000

約数和(自身を除く): 35558080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2549, 2770, 5098, 5540, 10196, 11080, 12745, 20392, 25490, 50980, 101960, 706073, 1412146, 2824292, 3530365, 5648584, 7060730, 14121460, 28242920]

約数ペア:

[(1, 28242920), (2, 14121460), (4, 7060730), (5, 5648584), (8, 3530365), (10, 2824292), (20, 1412146), (40, 706073), (277, 101960), (554, 50980), (1108, 25490), (1385, 20392), (2216, 12745), (2549, 11080), (2770, 10196), (5098, 5540)]