28248740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108649}}^1$

素因数の和:108671

約数の個数: 24

約数和(自身を含む): 63886200

約数和(自身を除く): 35637460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108649, 217298, 434596, 543245, 1086490, 1412437, 2172980, 2824874, 5649748, 7062185, 14124370, 28248740]

約数ペア:

[(1, 28248740), (2, 14124370), (4, 7062185), (5, 5649748), (10, 2824874), (13, 2172980), (20, 1412437), (26, 1086490), (52, 543245), (65, 434596), (130, 217298), (260, 108649)]