20309870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{290141}}^1$

素因数の和:290155

約数の個数: 16

約数和(自身を含む): 41780448

約数和(自身を除く): 21470578

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 290141, 580282, 1450705, 2030987, 2901410, 4061974, 10154935, 20309870]

約数ペア:

[(1, 20309870), (2, 10154935), (5, 4061974), (7, 2901410), (10, 2030987), (14, 1450705), (35, 580282), (70, 290141)]