2008758020

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{400151}}^1$

素因数の和:400411

約数の個数: 24

約数和(自身を含む): 4235208768

約数和(自身を除く): 2226450748

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 400151, 800302, 1600604, 2000755, 4001510, 8003020, 100437901, 200875802, 401751604, 502189505, 1004379010, 2008758020]

約数ペア:

[(1, 2008758020), (2, 1004379010), (4, 502189505), (5, 401751604), (10, 200875802), (20, 100437901), (251, 8003020), (502, 4001510), (1004, 2000755), (1255, 1600604), (2510, 800302), (5020, 400151)]