128135060

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{257}}^2$

素因数の和:620

約数の個数: 36

約数和(自身を含む): 272919612

約数和(自身を除く): 144784552

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 257, 388, 485, 514, 970, 1028, 1285, 1940, 2570, 5140, 24929, 49858, 66049, 99716, 124645, 132098, 249290, 264196, 330245, 498580, 660490, 1320980, 6406753, 12813506, 25627012, 32033765, 64067530, 128135060]

約数ペア:

[(1, 128135060), (2, 64067530), (4, 32033765), (5, 25627012), (10, 12813506), (20, 6406753), (97, 1320980), (194, 660490), (257, 498580), (388, 330245), (485, 264196), (514, 249290), (970, 132098), (1028, 124645), (1285, 99716), (1940, 66049), (2570, 49858), (5140, 24929)]