8438020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3943}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 17889984

約数和(自身を除く): 9451964

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 3943, 7886, 15772, 19715, 39430, 78860, 421901, 843802, 1687604, 2109505, 4219010, 8438020]

約数ペア:

[(1, 8438020), (2, 4219010), (4, 2109505), (5, 1687604), (10, 843802), (20, 421901), (107, 78860), (214, 39430), (428, 19715), (535, 15772), (1070, 7886), (2140, 3943)]