20289702940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78037319}}^1$

素因数の和:78037341

約数の個数: 24

約数和(自身を含む): 45885944160

約数和(自身を除く): 25596241220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78037319, 156074638, 312149276, 390186595, 780373190, 1014485147, 1560746380, 2028970294, 4057940588, 5072425735, 10144851470, 20289702940]

約数ペア:

[(1, 20289702940), (2, 10144851470), (4, 5072425735), (5, 4057940588), (10, 2028970294), (13, 1560746380), (20, 1014485147), (26, 780373190), (52, 390186595), (65, 312149276), (130, 156074638), (260, 78037319)]