218974340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{842209}}^1$

素因数の和:842231

約数の個数: 24

約数和(自身を含む): 495219480

約数和(自身を除く): 276245140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 842209, 1684418, 3368836, 4211045, 8422090, 10948717, 16844180, 21897434, 43794868, 54743585, 109487170, 218974340]

約数ペア:

[(1, 218974340), (2, 109487170), (4, 54743585), (5, 43794868), (10, 21897434), (13, 16844180), (20, 10948717), (26, 8422090), (52, 4211045), (65, 3368836), (130, 1684418), (260, 842209)]