64540480

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1451}}^1$

素因数の和:1607

約数の個数: 56

約数和(自身を含む): 154899360

約数和(自身を除く): 90358880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 1451, 2224, 2780, 2902, 4448, 5560, 5804, 7255, 8896, 11120, 11608, 14510, 22240, 23216, 29020, 44480, 46432, 58040, 92864, 116080, 201689, 232160, 403378, 464320, 806756, 1008445, 1613512, 2016890, 3227024, 4033780, 6454048, 8067560, 12908096, 16135120, 32270240, 64540480]

約数ペア:

[(1, 64540480), (2, 32270240), (4, 16135120), (5, 12908096), (8, 8067560), (10, 6454048), (16, 4033780), (20, 3227024), (32, 2016890), (40, 1613512), (64, 1008445), (80, 806756), (139, 464320), (160, 403378), (278, 232160), (320, 201689), (556, 116080), (695, 92864), (1112, 58040), (1390, 46432), (1451, 44480), (2224, 29020), (2780, 23216), (2902, 22240), (4448, 14510), (5560, 11608), (5804, 11120), (7255, 8896)]