820448320

素因数分解:

$2^6\times 5^1\times {\mathrm{2563901}}^1$

素因数の和:2563918

約数の個数: 28

約数和(自身を含む): 1953693324

約数和(自身を除く): 1133245004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2563901, 5127802, 10255604, 12819505, 20511208, 25639010, 41022416, 51278020, 82044832, 102556040, 164089664, 205112080, 410224160, 820448320]

約数ペア:

[(1, 820448320), (2, 410224160), (4, 205112080), (5, 164089664), (8, 102556040), (10, 82044832), (16, 51278020), (20, 41022416), (32, 25639010), (40, 20511208), (64, 12819505), (80, 10255604), (160, 5127802), (320, 2563901)]