81671984

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{8971}}^1$

素因数の和:9548

約数の個数: 20

約数和(自身を含む): 158535240

約数和(自身を除く): 76863256

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2276, 4552, 8971, 9104, 17942, 35884, 71768, 143536, 5104499, 10208998, 20417996, 40835992, 81671984]

約数ペア:

[(1, 81671984), (2, 40835992), (4, 20417996), (8, 10208998), (16, 5104499), (569, 143536), (1138, 71768), (2276, 35884), (4552, 17942), (8971, 9104)]