20789870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{50707}}^1$

素因数の和:50755

約数の個数: 16

約数和(自身を含む): 38335248

約数和(自身を除く): 17545378

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 50707, 101414, 253535, 507070, 2078987, 4157974, 10394935, 20789870]

約数ペア:

[(1, 20789870), (2, 10394935), (5, 4157974), (10, 2078987), (41, 507070), (82, 253535), (205, 101414), (410, 50707)]