290226280

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 663526080

約数和(自身を除く): 373299800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 211, 251, 274, 422, 502, 548, 685, 844, 1004, 1055, 1096, 1255, 1370, 1688, 2008, 2110, 2510, 2740, 4220, 5020, 5480, 8440, 10040, 28907, 34387, 52961, 57814, 68774, 105922, 115628, 137548, 144535, 171935, 211844, 231256, 264805, 275096, 289070, 343870, 423688, 529610, 578140, 687740, 1059220, 1156280, 1375480, 2118440, 7255657, 14511314, 29022628, 36278285, 58045256, 72556570, 145113140, 290226280]

約数ペア:

[(1, 290226280), (2, 145113140), (4, 72556570), (5, 58045256), (8, 36278285), (10, 29022628), (20, 14511314), (40, 7255657), (137, 2118440), (211, 1375480), (251, 1156280), (274, 1059220), (422, 687740), (502, 578140), (548, 529610), (685, 423688), (844, 343870), (1004, 289070), (1055, 275096), (1096, 264805), (1255, 231256), (1370, 211844), (1688, 171935), (2008, 144535), (2110, 137548), (2510, 115628), (2740, 105922), (4220, 68774), (5020, 57814), (5480, 52961), (8440, 34387), (10040, 28907)]