1558218820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{691}}^1\times {\mathrm{823}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 3304925568

約数和(自身を除く): 1746706748

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 691, 823, 1370, 1382, 1646, 2740, 2764, 3292, 3455, 4115, 6910, 8230, 13820, 16460, 94667, 112751, 189334, 225502, 378668, 451004, 473335, 563755, 568693, 946670, 1127510, 1137386, 1893340, 2255020, 2274772, 2843465, 5686930, 11373860, 77910941, 155821882, 311643764, 389554705, 779109410, 1558218820]

約数ペア:

[(1, 1558218820), (2, 779109410), (4, 389554705), (5, 311643764), (10, 155821882), (20, 77910941), (137, 11373860), (274, 5686930), (548, 2843465), (685, 2274772), (691, 2255020), (823, 1893340), (1370, 1137386), (1382, 1127510), (1646, 946670), (2740, 568693), (2764, 563755), (3292, 473335), (3455, 451004), (4115, 378668), (6910, 225502), (8230, 189334), (13820, 112751), (16460, 94667)]