20745189712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99736489}}^1$

素因数の和:99736510

約数の個数: 20

約数和(自身を含む): 43285636660

約数和(自身を除く): 22540446948

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99736489, 199472978, 398945956, 797891912, 1296574357, 1595783824, 2593148714, 5186297428, 10372594856, 20745189712]

約数ペア:

[(1, 20745189712), (2, 10372594856), (4, 5186297428), (8, 2593148714), (13, 1595783824), (16, 1296574357), (26, 797891912), (52, 398945956), (104, 199472978), (208, 99736489)]