19223840

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{877}}^1$

素因数の和:1029

約数の個数: 48

約数和(自身を含む): 45799992

約数和(自身を除く): 26576152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 877, 1096, 1370, 1754, 2192, 2740, 3508, 4384, 4385, 5480, 7016, 8770, 10960, 14032, 17540, 21920, 28064, 35080, 70160, 120149, 140320, 240298, 480596, 600745, 961192, 1201490, 1922384, 2402980, 3844768, 4805960, 9611920, 19223840]

約数ペア:

[(1, 19223840), (2, 9611920), (4, 4805960), (5, 3844768), (8, 2402980), (10, 1922384), (16, 1201490), (20, 961192), (32, 600745), (40, 480596), (80, 240298), (137, 140320), (160, 120149), (274, 70160), (548, 35080), (685, 28064), (877, 21920), (1096, 17540), (1370, 14032), (1754, 10960), (2192, 8770), (2740, 7016), (3508, 5480), (4384, 4385)]