81571172

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{647}}^1\times {\mathrm{733}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 146494656

約数和(自身を除く): 64923484

約数列:

[1, 2, 4, 43, 86, 172, 647, 733, 1294, 1466, 2588, 2932, 27821, 31519, 55642, 63038, 111284, 126076, 474251, 948502, 1897004, 20392793, 40785586, 81571172]

約数ペア:

[(1, 81571172), (2, 40785586), (4, 20392793), (43, 1897004), (86, 948502), (172, 474251), (647, 126076), (733, 111284), (1294, 63038), (1466, 55642), (2588, 31519), (2932, 27821)]