12850780

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1571}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 27069840

約数和(自身を除く): 14219060

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1571, 1636, 2045, 3142, 4090, 6284, 7855, 8180, 15710, 31420, 642539, 1285078, 2570156, 3212695, 6425390, 12850780]

約数ペア:

[(1, 12850780), (2, 6425390), (4, 3212695), (5, 2570156), (10, 1285078), (20, 642539), (409, 31420), (818, 15710), (1571, 8180), (1636, 7855), (2045, 6284), (3142, 4090)]