31780825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2909}}^1$

素因数の和:2961

約数の個数: 24

約数和(自身を含む): 43300800

約数和(自身を除く): 11519975

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 2185, 2909, 10925, 14545, 55271, 66907, 72725, 276355, 334535, 1271233, 1381775, 1672675, 6356165, 31780825]

約数ペア:

[(1, 31780825), (5, 6356165), (19, 1672675), (23, 1381775), (25, 1271233), (95, 334535), (115, 276355), (437, 72725), (475, 66907), (575, 55271), (2185, 14545), (2909, 10925)]