819005180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{42701}}^1$

素因数の和:42854

約数の個数: 48

約数和(自身を含む): 1980006336

約数和(自身を除く): 1161001156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4795, 9590, 19180, 42701, 85402, 170804, 213505, 298907, 427010, 597814, 854020, 1195628, 1494535, 2989070, 5850037, 5978140, 11700074, 23400148, 29250185, 40950259, 58500370, 81900518, 117000740, 163801036, 204751295, 409502590, 819005180]

約数ペア:

[(1, 819005180), (2, 409502590), (4, 204751295), (5, 163801036), (7, 117000740), (10, 81900518), (14, 58500370), (20, 40950259), (28, 29250185), (35, 23400148), (70, 11700074), (137, 5978140), (140, 5850037), (274, 2989070), (548, 1494535), (685, 1195628), (959, 854020), (1370, 597814), (1918, 427010), (2740, 298907), (3836, 213505), (4795, 170804), (9590, 85402), (19180, 42701)]