19781060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76081}}^1$

素因数の和:76103

約数の個数: 24

約数和(自身を含む): 44736216

約数和(自身を除く): 24955156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76081, 152162, 304324, 380405, 760810, 989053, 1521620, 1978106, 3956212, 4945265, 9890530, 19781060]

約数ペア:

[(1, 19781060), (2, 9890530), (4, 4945265), (5, 3956212), (10, 1978106), (13, 1521620), (20, 989053), (26, 760810), (52, 380405), (65, 304324), (130, 152162), (260, 76081)]