20548568

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{617}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 40491360

約数和(自身を除く): 19942792

約数列:

[1, 2, 4, 8, 23, 46, 92, 181, 184, 362, 617, 724, 1234, 1448, 2468, 4163, 4936, 8326, 14191, 16652, 28382, 33304, 56764, 111677, 113528, 223354, 446708, 893416, 2568571, 5137142, 10274284, 20548568]

約数ペア:

[(1, 20548568), (2, 10274284), (4, 5137142), (8, 2568571), (23, 893416), (46, 446708), (92, 223354), (181, 113528), (184, 111677), (362, 56764), (617, 33304), (724, 28382), (1234, 16652), (1448, 14191), (2468, 8326), (4163, 4936)]