40581136

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{23269}}^1$

素因数の和:23386

約数の個数: 20

約数和(自身を含む): 79350700

約数和(自身を除く): 38769564

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 23269, 46538, 93076, 186152, 372304, 2536321, 5072642, 10145284, 20290568, 40581136]

約数ペア:

[(1, 40581136), (2, 20290568), (4, 10145284), (8, 5072642), (16, 2536321), (109, 372304), (218, 186152), (436, 93076), (872, 46538), (1744, 23269)]