28505087195

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1984343}}^1$

素因数の和:1984391

約数の個数: 24

約数和(自身を含む): 39218574816

約数和(自身を除く): 10713487621

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 14365, 1984343, 9921715, 25796459, 33733831, 128982295, 168669155, 335353967, 438539803, 1676769835, 2192699015, 5701017439, 28505087195]

約数ペア:

[(1, 28505087195), (5, 5701017439), (13, 2192699015), (17, 1676769835), (65, 438539803), (85, 335353967), (169, 168669155), (221, 128982295), (845, 33733831), (1105, 25796459), (2873, 9921715), (14365, 1984343)]