8720240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5737}}^1$

素因数の和:5769

約数の個数: 40

約数和(自身を含む): 21345360

約数和(自身を除く): 12625120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 5737, 11474, 22948, 28685, 45896, 57370, 91792, 109003, 114740, 218006, 229480, 436012, 458960, 545015, 872024, 1090030, 1744048, 2180060, 4360120, 8720240]

約数ペア:

[(1, 8720240), (2, 4360120), (4, 2180060), (5, 1744048), (8, 1090030), (10, 872024), (16, 545015), (19, 458960), (20, 436012), (38, 229480), (40, 218006), (76, 114740), (80, 109003), (95, 91792), (152, 57370), (190, 45896), (304, 28685), (380, 22948), (760, 11474), (1520, 5737)]