28444390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{16831}}^1$

素因数の和:16864

約数の個数: 24

約数和(自身を含む): 55444608

約数和(自身を除く): 27000218

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 16831, 33662, 84155, 168310, 218803, 437606, 1094015, 2188030, 2844439, 5688878, 14222195, 28444390]

約数ペア:

[(1, 28444390), (2, 14222195), (5, 5688878), (10, 2844439), (13, 2188030), (26, 1094015), (65, 437606), (130, 218803), (169, 168310), (338, 84155), (845, 33662), (1690, 16831)]