201994040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{17971}}^1$

素因数の和:18263

約数の個数: 32

約数和(自身を含む): 456129360

約数和(自身を除く): 254135320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 17971, 35942, 71884, 89855, 143768, 179710, 359420, 718840, 5049851, 10099702, 20199404, 25249255, 40398808, 50498510, 100997020, 201994040]

約数ペア:

[(1, 201994040), (2, 100997020), (4, 50498510), (5, 40398808), (8, 25249255), (10, 20199404), (20, 10099702), (40, 5049851), (281, 718840), (562, 359420), (1124, 179710), (1405, 143768), (2248, 89855), (2810, 71884), (5620, 35942), (11240, 17971)]