685568

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:134

約数の個数: 40

約数和(自身を含む): 1489488

約数和(自身を除く): 803920

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 103, 104, 128, 206, 208, 256, 412, 416, 512, 824, 832, 1339, 1648, 1664, 2678, 3296, 3328, 5356, 6592, 6656, 10712, 13184, 21424, 26368, 42848, 52736, 85696, 171392, 342784, 685568]

約数ペア:

[(1, 685568), (2, 342784), (4, 171392), (8, 85696), (13, 52736), (16, 42848), (26, 26368), (32, 21424), (52, 13184), (64, 10712), (103, 6656), (104, 6592), (128, 5356), (206, 3328), (208, 3296), (256, 2678), (412, 1664), (416, 1648), (512, 1339), (824, 832)]