84743090

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{20129}}^1$

素因数の和:20557

約数の個数: 16

約数和(自身を含む): 152907480

約数和(自身を除く): 68164390

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 20129, 40258, 100645, 201290, 8474309, 16948618, 42371545, 84743090]

約数ペア:

[(1, 84743090), (2, 42371545), (5, 16948618), (10, 8474309), (421, 201290), (842, 100645), (2105, 40258), (4210, 20129)]