2812225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 3984120

約数和(自身を除く): 1171895

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 509, 1105, 2545, 5525, 6617, 8653, 12725, 33085, 43265, 112489, 165425, 216325, 562445, 2812225]

約数ペア:

[(1, 2812225), (5, 562445), (13, 216325), (17, 165425), (25, 112489), (65, 43265), (85, 33085), (221, 12725), (325, 8653), (425, 6617), (509, 5525), (1105, 2545)]