28441660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109391}}^1$

素因数の和:109413

約数の個数: 24

約数和(自身を含む): 64322496

約数和(自身を除く): 35880836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109391, 218782, 437564, 546955, 1093910, 1422083, 2187820, 2844166, 5688332, 7110415, 14220830, 28441660]

約数ペア:

[(1, 28441660), (2, 14220830), (4, 7110415), (5, 5688332), (10, 2844166), (13, 2187820), (20, 1422083), (26, 1093910), (52, 546955), (65, 437564), (130, 218782), (260, 109391)]