19546820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51439}}^1$

素因数の和:51467

約数の個数: 24

約数和(自身を含む): 43209600

約数和(自身を除く): 23662780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51439, 102878, 205756, 257195, 514390, 977341, 1028780, 1954682, 3909364, 4886705, 9773410, 19546820]

約数ペア:

[(1, 19546820), (2, 9773410), (4, 4886705), (5, 3909364), (10, 1954682), (19, 1028780), (20, 977341), (38, 514390), (76, 257195), (95, 205756), (190, 102878), (380, 51439)]