20805120005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{4457}}^1\times {\mathrm{40591}}^1$

素因数の和:45076

約数の個数: 16

約数和(自身を含む): 26058115584

約数和(自身を除く): 5252995579

約数列:

[1, 5, 23, 115, 4457, 22285, 40591, 102511, 202955, 512555, 933593, 4667965, 180914087, 904570435, 4161024001, 20805120005]

約数ペア:

[(1, 20805120005), (5, 4161024001), (23, 904570435), (115, 180914087), (4457, 4667965), (22285, 933593), (40591, 512555), (102511, 202955)]