20620765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16301}}^1$

素因数の和:16340

約数の個数: 16

約数和(自身を含む): 28169856

約数和(自身を除く): 7549091

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16301, 81505, 179311, 374923, 896555, 1874615, 4124153, 20620765]

約数ペア:

[(1, 20620765), (5, 4124153), (11, 1874615), (23, 896555), (55, 374923), (115, 179311), (253, 81505), (1265, 16301)]