20129176085

素因数分解:

$5^1\times {\mathrm{643}}^1\times {\mathrm{647}}^1\times {\mathrm{9677}}^1$

素因数の和:10972

約数の個数: 16

約数和(自身を含む): 24232473216

約数和(自身を除く): 4103297131

約数列:

[1, 5, 643, 647, 3215, 3235, 9677, 48385, 416021, 2080105, 6222311, 6261019, 31111555, 31305095, 4025835217, 20129176085]

約数ペア:

[(1, 20129176085), (5, 4025835217), (643, 31305095), (647, 31111555), (3215, 6261019), (3235, 6222311), (9677, 2080105), (48385, 416021)]