12784255

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:168

約数の個数: 32

約数和(自身を含む): 18024768

約数和(自身を除く): 5240513

約数列:

[1, 5, 11, 17, 55, 85, 113, 121, 187, 565, 605, 935, 1243, 1331, 1921, 2057, 6215, 6655, 9605, 10285, 13673, 21131, 22627, 68365, 105655, 113135, 150403, 232441, 752015, 1162205, 2556851, 12784255]

約数ペア:

[(1, 12784255), (5, 2556851), (11, 1162205), (17, 752015), (55, 232441), (85, 150403), (113, 113135), (121, 105655), (187, 68365), (565, 22627), (605, 21131), (935, 13673), (1243, 10285), (1331, 9605), (1921, 6655), (2057, 6215)]