28376660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109141}}^1$

素因数の和:109163

約数の個数: 24

約数和(自身を含む): 64175496

約数和(自身を除く): 35798836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109141, 218282, 436564, 545705, 1091410, 1418833, 2182820, 2837666, 5675332, 7094165, 14188330, 28376660]

約数ペア:

[(1, 28376660), (2, 14188330), (4, 7094165), (5, 5675332), (10, 2837666), (13, 2182820), (20, 1418833), (26, 1091410), (52, 545705), (65, 436564), (130, 218282), (260, 109141)]