13680820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4993}}^1$

素因数の和:5139

約数の個数: 24

約数和(自身を含む): 28945224

約数和(自身を除く): 15264404

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 4993, 9986, 19972, 24965, 49930, 99860, 684041, 1368082, 2736164, 3420205, 6840410, 13680820]

約数ペア:

[(1, 13680820), (2, 6840410), (4, 3420205), (5, 2736164), (10, 1368082), (20, 684041), (137, 99860), (274, 49930), (548, 24965), (685, 19972), (1370, 9986), (2740, 4993)]