20494370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157649}}^1$

素因数の和:157669

約数の個数: 16

約数和(自身を含む): 39727800

約数和(自身を除く): 19233430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157649, 315298, 788245, 1576490, 2049437, 4098874, 10247185, 20494370]

約数ペア:

[(1, 20494370), (2, 10247185), (5, 4098874), (10, 2049437), (13, 1576490), (26, 788245), (65, 315298), (130, 157649)]