21872320

素因数分解:

$2^6\times 5^1\times {\mathrm{68351}}^1$

素因数の和:68368

約数の個数: 28

約数和(自身を含む): 52084224

約数和(自身を除く): 30211904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68351, 136702, 273404, 341755, 546808, 683510, 1093616, 1367020, 2187232, 2734040, 4374464, 5468080, 10936160, 21872320]

約数ペア:

[(1, 21872320), (2, 10936160), (4, 5468080), (5, 4374464), (8, 2734040), (10, 2187232), (16, 1367020), (20, 1093616), (32, 683510), (40, 546808), (64, 341755), (80, 273404), (160, 136702), (320, 68351)]