27840455

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 34080480

約数和(自身を除く): 6240025

約数列:

[1, 5, 97, 137, 419, 485, 685, 2095, 13289, 40643, 57403, 66445, 203215, 287015, 5568091, 27840455]

約数ペア:

[(1, 27840455), (5, 5568091), (97, 287015), (137, 203215), (419, 66445), (485, 57403), (685, 40643), (2095, 13289)]