1285284680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{234541}}^1$

素因数の和:234689

約数の個数: 32

約数和(自身を含む): 2913011640

約数和(自身を除く): 1627726960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 234541, 469082, 938164, 1172705, 1876328, 2345410, 4690820, 9381640, 32132117, 64264234, 128528468, 160660585, 257056936, 321321170, 642642340, 1285284680]

約数ペア:

[(1, 1285284680), (2, 642642340), (4, 321321170), (5, 257056936), (8, 160660585), (10, 128528468), (20, 64264234), (40, 32132117), (137, 9381640), (274, 4690820), (548, 2345410), (685, 1876328), (1096, 1172705), (1370, 938164), (2740, 469082), (5480, 234541)]