4158128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20012

約数の個数: 20

約数和(自身を含む): 8676528

約数和(自身を除く): 4518400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 19991, 39982, 79964, 159928, 259883, 319856, 519766, 1039532, 2079064, 4158128]

約数ペア:

[(1, 4158128), (2, 2079064), (4, 1039532), (8, 519766), (13, 319856), (16, 259883), (26, 159928), (52, 79964), (104, 39982), (208, 19991)]