1281865

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 24

約数和(自身を含む): 1752408

約数和(自身を除く): 470543

約数列:

[1, 5, 13, 37, 41, 65, 169, 185, 205, 481, 533, 845, 1517, 2405, 2665, 6253, 6929, 7585, 19721, 31265, 34645, 98605, 256373, 1281865]

約数ペア:

[(1, 1281865), (5, 256373), (13, 98605), (37, 34645), (41, 31265), (65, 19721), (169, 7585), (185, 6929), (205, 6253), (481, 2665), (533, 2405), (845, 1517)]