19805110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11719}}^1$

素因数の和:11752

約数の個数: 24

約数和(自身を含む): 38605680

約数和(自身を除く): 18800570

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11719, 23438, 58595, 117190, 152347, 304694, 761735, 1523470, 1980511, 3961022, 9902555, 19805110]

約数ペア:

[(1, 19805110), (2, 9902555), (5, 3961022), (10, 1980511), (13, 1523470), (26, 761735), (65, 304694), (130, 152347), (169, 117190), (338, 58595), (845, 23438), (1690, 11719)]