1211893780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{1721}}^1$

素因数の和:2124

約数の個数: 48

約数和(自身を含む): 2575023696

約数和(自身を除く): 1363129916

約数列:

[1, 2, 4, 5, 10, 20, 137, 257, 274, 514, 548, 685, 1028, 1285, 1370, 1721, 2570, 2740, 3442, 5140, 6884, 8605, 17210, 34420, 35209, 70418, 140836, 176045, 235777, 352090, 442297, 471554, 704180, 884594, 943108, 1178885, 1769188, 2211485, 2357770, 4422970, 4715540, 8845940, 60594689, 121189378, 242378756, 302973445, 605946890, 1211893780]

約数ペア:

[(1, 1211893780), (2, 605946890), (4, 302973445), (5, 242378756), (10, 121189378), (20, 60594689), (137, 8845940), (257, 4715540), (274, 4422970), (514, 2357770), (548, 2211485), (685, 1769188), (1028, 1178885), (1285, 943108), (1370, 884594), (1721, 704180), (2570, 471554), (2740, 442297), (3442, 352090), (5140, 235777), (6884, 176045), (8605, 140836), (17210, 70418), (34420, 35209)]