203792440

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{18131}}^1$

素因数の和:18423

約数の個数: 32

約数和(自身を含む): 460190160

約数和(自身を除く): 256397720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 18131, 36262, 72524, 90655, 145048, 181310, 362620, 725240, 5094811, 10189622, 20379244, 25474055, 40758488, 50948110, 101896220, 203792440]

約数ペア:

[(1, 203792440), (2, 101896220), (4, 50948110), (5, 40758488), (8, 25474055), (10, 20379244), (20, 10189622), (40, 5094811), (281, 725240), (562, 362620), (1124, 181310), (1405, 145048), (2248, 90655), (2810, 72524), (5620, 36262), (11240, 18131)]