109487920

素因数分解:

$2^4\times 5^1\times {\mathrm{1368599}}^1$

素因数の和:1368612

約数の個数: 20

約数和(自身を含む): 254559600

約数和(自身を除く): 145071680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1368599, 2737198, 5474396, 6842995, 10948792, 13685990, 21897584, 27371980, 54743960, 109487920]

約数ペア:

[(1, 109487920), (2, 54743960), (4, 27371980), (5, 21897584), (8, 13685990), (10, 10948792), (16, 6842995), (20, 5474396), (40, 2737198), (80, 1368599)]