39662440

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2549}}^1$

素因数の和:2949

約数の個数: 32

約数和(自身を含む): 89505000

約数和(自身を除く): 49842560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 2549, 3112, 3890, 5098, 7780, 10196, 12745, 15560, 20392, 25490, 50980, 101960, 991561, 1983122, 3966244, 4957805, 7932488, 9915610, 19831220, 39662440]

約数ペア:

[(1, 39662440), (2, 19831220), (4, 9915610), (5, 7932488), (8, 4957805), (10, 3966244), (20, 1983122), (40, 991561), (389, 101960), (778, 50980), (1556, 25490), (1945, 20392), (2549, 15560), (3112, 12745), (3890, 10196), (5098, 7780)]