208240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 513360

約数和(自身を除く): 305120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 137, 152, 190, 274, 304, 380, 548, 685, 760, 1096, 1370, 1520, 2192, 2603, 2740, 5206, 5480, 10412, 10960, 13015, 20824, 26030, 41648, 52060, 104120, 208240]

約数ペア:

[(1, 208240), (2, 104120), (4, 52060), (5, 41648), (8, 26030), (10, 20824), (16, 13015), (19, 10960), (20, 10412), (38, 5480), (40, 5206), (76, 2740), (80, 2603), (95, 2192), (137, 1520), (152, 1370), (190, 1096), (274, 760), (304, 685), (380, 548)]