20009912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1063}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 40666080

約数和(自身を除く): 20656168

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181, 362, 724, 1063, 1448, 2126, 2353, 4252, 4706, 8504, 9412, 13819, 18824, 27638, 55276, 110552, 192403, 384806, 769612, 1539224, 2501239, 5002478, 10004956, 20009912]

約数ペア:

[(1, 20009912), (2, 10004956), (4, 5002478), (8, 2501239), (13, 1539224), (26, 769612), (52, 384806), (104, 192403), (181, 110552), (362, 55276), (724, 27638), (1063, 18824), (1448, 13819), (2126, 9412), (2353, 8504), (4252, 4706)]