81424564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{23371}}^1$

素因数の和:23455

約数の個数: 24

約数和(自身を含む): 155751008

約数和(自身を除く): 74326444

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 23371, 46742, 93484, 303823, 607646, 1215292, 1565857, 3131714, 6263428, 20356141, 40712282, 81424564]

約数ペア:

[(1, 81424564), (2, 40712282), (4, 20356141), (13, 6263428), (26, 3131714), (52, 1565857), (67, 1215292), (134, 607646), (268, 303823), (871, 93484), (1742, 46742), (3484, 23371)]