249872320

素因数分解:

$2^6\times 5^1\times {\mathrm{780851}}^1$

素因数の和:780868

約数の個数: 28

約数和(自身を含む): 595009224

約数和(自身を除く): 345136904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 780851, 1561702, 3123404, 3904255, 6246808, 7808510, 12493616, 15617020, 24987232, 31234040, 49974464, 62468080, 124936160, 249872320]

約数ペア:

[(1, 249872320), (2, 124936160), (4, 62468080), (5, 49974464), (8, 31234040), (10, 24987232), (16, 15617020), (20, 12493616), (32, 7808510), (40, 6246808), (64, 3904255), (80, 3123404), (160, 1561702), (320, 780851)]