213809320

素因数分解:

$2^3\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{2591}}^1$

素因数の和:4665

約数の個数: 32

約数和(自身を含む): 481489920

約数和(自身を除く): 267680600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2063, 2591, 4126, 5182, 8252, 10315, 10364, 12955, 16504, 20630, 20728, 25910, 41260, 51820, 82520, 103640, 5345233, 10690466, 21380932, 26726165, 42761864, 53452330, 106904660, 213809320]

約数ペア:

[(1, 213809320), (2, 106904660), (4, 53452330), (5, 42761864), (8, 26726165), (10, 21380932), (20, 10690466), (40, 5345233), (2063, 103640), (2591, 82520), (4126, 51820), (5182, 41260), (8252, 25910), (10315, 20728), (10364, 20630), (12955, 16504)]