20996935910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2089}}^1\times {\mathrm{52901}}^1$

素因数の和:55016

約数の個数: 32

約数和(自身を含む): 39803464800

約数和(自身を除く): 18806528890

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 2089, 4178, 10445, 20890, 39691, 52901, 79382, 105802, 198455, 264505, 396910, 529010, 1005119, 2010238, 5025595, 10051190, 110510189, 221020378, 552550945, 1105101890, 2099693591, 4199387182, 10498467955, 20996935910]

約数ペア:

[(1, 20996935910), (2, 10498467955), (5, 4199387182), (10, 2099693591), (19, 1105101890), (38, 552550945), (95, 221020378), (190, 110510189), (2089, 10051190), (4178, 5025595), (10445, 2010238), (20890, 1005119), (39691, 529010), (52901, 396910), (79382, 264505), (105802, 198455)]