13128505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^2$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 18130392

約数和(自身を除く): 5001887

約数列:

[1, 5, 13, 17, 65, 85, 109, 221, 545, 1105, 1417, 1853, 7085, 9265, 11881, 24089, 59405, 120445, 154453, 201977, 772265, 1009885, 2625701, 13128505]

約数ペア:

[(1, 13128505), (5, 2625701), (13, 1009885), (17, 772265), (65, 201977), (85, 154453), (109, 120445), (221, 59405), (545, 24089), (1105, 11881), (1417, 9265), (1853, 7085)]