20481412

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1259}}^1$

素因数の和:1360

約数の個数: 36

約数和(自身を含む): 42230160

約数和(自身を除く): 21748748

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 1259, 2324, 2518, 4067, 5036, 8134, 8813, 16268, 17626, 35252, 61691, 104497, 123382, 208994, 246764, 417988, 731479, 1462958, 2925916, 5120353, 10240706, 20481412]

約数ペア:

[(1, 20481412), (2, 10240706), (4, 5120353), (7, 2925916), (14, 1462958), (28, 731479), (49, 417988), (83, 246764), (98, 208994), (166, 123382), (196, 104497), (332, 61691), (581, 35252), (1162, 17626), (1259, 16268), (2324, 8813), (2518, 8134), (4067, 5036)]