81217195

素因数分解:

$5^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 98714880

約数和(自身を除く): 17497685

約数列:

[1, 5, 163, 227, 439, 815, 1135, 2195, 37001, 71557, 99653, 185005, 357785, 498265, 16243439, 81217195]

約数ペア:

[(1, 81217195), (5, 16243439), (163, 498265), (227, 357785), (439, 185005), (815, 99653), (1135, 71557), (2195, 37001)]