66958780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1861}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 161413056

約数和(自身を除く): 94454276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 1861, 2570, 3598, 3722, 5140, 7196, 7444, 8995, 9305, 13027, 17990, 18610, 26054, 35980, 37220, 52108, 65135, 130270, 260540, 478277, 956554, 1913108, 2391385, 3347939, 4782770, 6695878, 9565540, 13391756, 16739695, 33479390, 66958780]

約数ペア:

[(1, 66958780), (2, 33479390), (4, 16739695), (5, 13391756), (7, 9565540), (10, 6695878), (14, 4782770), (20, 3347939), (28, 2391385), (35, 1913108), (70, 956554), (140, 478277), (257, 260540), (514, 130270), (1028, 65135), (1285, 52108), (1799, 37220), (1861, 35980), (2570, 26054), (3598, 18610), (3722, 17990), (5140, 13027), (7196, 9305), (7444, 8995)]