81157136

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{50221}}^1$

素因数の和:50330

約数の個数: 20

約数和(自身を含む): 158801964

約数和(自身を除く): 77644828

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 50221, 100442, 200884, 401768, 803536, 5072321, 10144642, 20289284, 40578568, 81157136]

約数ペア:

[(1, 81157136), (2, 40578568), (4, 20289284), (8, 10144642), (16, 5072321), (101, 803536), (202, 401768), (404, 200884), (808, 100442), (1616, 50221)]