20380808

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1031}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 43839360

約数和(自身を除く): 23458552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1031, 1412, 2062, 2471, 2824, 4124, 4942, 7217, 8248, 9884, 14434, 19768, 28868, 57736, 363943, 727886, 1455772, 2547601, 2911544, 5095202, 10190404, 20380808]

約数ペア:

[(1, 20380808), (2, 10190404), (4, 5095202), (7, 2911544), (8, 2547601), (14, 1455772), (28, 727886), (56, 363943), (353, 57736), (706, 28868), (1031, 19768), (1412, 14434), (2062, 9884), (2471, 8248), (2824, 7217), (4124, 4942)]