81667820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{314107}}^1$

素因数の和:314129

約数の個数: 24

約数和(自身を含む): 184695504

約数和(自身を除く): 103027684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 314107, 628214, 1256428, 1570535, 3141070, 4083391, 6282140, 8166782, 16333564, 20416955, 40833910, 81667820]

約数ペア:

[(1, 81667820), (2, 40833910), (4, 20416955), (5, 16333564), (10, 8166782), (13, 6282140), (20, 4083391), (26, 3141070), (52, 1570535), (65, 1256428), (130, 628214), (260, 314107)]