648692

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 1294272

約数和(自身を除く): 645580

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 641, 1012, 1282, 2564, 7051, 14102, 14743, 28204, 29486, 58972, 162173, 324346, 648692]

約数ペア:

[(1, 648692), (2, 324346), (4, 162173), (11, 58972), (22, 29486), (23, 28204), (44, 14743), (46, 14102), (92, 7051), (253, 2564), (506, 1282), (641, 1012)]