18008157020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128629693}}^1$

素因数の和:128629709

約数の個数: 24

約数和(自身を含む): 43219577184

約数和(自身を除く): 25211420164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128629693, 257259386, 514518772, 643148465, 900407851, 1286296930, 1800815702, 2572593860, 3601631404, 4502039255, 9004078510, 18008157020]

約数ペア:

[(1, 18008157020), (2, 9004078510), (4, 4502039255), (5, 3601631404), (7, 2572593860), (10, 1800815702), (14, 1286296930), (20, 900407851), (28, 643148465), (35, 514518772), (70, 257259386), (140, 128629693)]