12719575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2011}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 17963136

約数和(自身を除く): 5243561

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 2011, 6325, 10055, 22121, 46253, 50275, 110605, 231265, 508783, 553025, 1156325, 2543915, 12719575]

約数ペア:

[(1, 12719575), (5, 2543915), (11, 1156325), (23, 553025), (25, 508783), (55, 231265), (115, 110605), (253, 50275), (275, 46253), (575, 22121), (1265, 10055), (2011, 6325)]