1991320

素因数分解:

$2^3\times 5^1\times {\mathrm{49783}}^1$

素因数の和:49794

約数の個数: 16

約数和(自身を含む): 4480560

約数和(自身を除く): 2489240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49783, 99566, 199132, 248915, 398264, 497830, 995660, 1991320]

約数ペア:

[(1, 1991320), (2, 995660), (4, 497830), (5, 398264), (8, 248915), (10, 199132), (20, 99566), (40, 49783)]