15681328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{75391}}^1$

素因数の和:75412

約数の個数: 20

約数和(自身を含む): 32720128

約数和(自身を除く): 17038800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 75391, 150782, 301564, 603128, 980083, 1206256, 1960166, 3920332, 7840664, 15681328]

約数ペア:

[(1, 15681328), (2, 7840664), (4, 3920332), (8, 1960166), (13, 1206256), (16, 980083), (26, 603128), (52, 301564), (104, 150782), (208, 75391)]