20539210

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25999}}^1$

素因数の和:26085

約数の個数: 16

約数和(自身を含む): 37440000

約数和(自身を除く): 16900790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25999, 51998, 129995, 259990, 2053921, 4107842, 10269605, 20539210]

約数ペア:

[(1, 20539210), (2, 10269605), (5, 4107842), (10, 2053921), (79, 259990), (158, 129995), (395, 51998), (790, 25999)]