18219880810

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9155719}}^1$

素因数の和:9155925

約数の個数: 16

約数和(自身を含む): 32960592000

約数和(自身を除く): 14740711190

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9155719, 18311438, 45778595, 91557190, 1821988081, 3643976162, 9109940405, 18219880810]

約数ペア:

[(1, 18219880810), (2, 9109940405), (5, 3643976162), (10, 1821988081), (199, 91557190), (398, 45778595), (995, 18311438), (1990, 9155719)]