18831725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:146

約数の個数: 36

約数和(自身を含む): 26867328

約数和(自身を除く): 8035603

約数列:

[1, 5, 11, 25, 31, 47, 55, 155, 235, 275, 341, 517, 775, 1175, 1457, 1705, 2209, 2585, 7285, 8525, 11045, 12925, 16027, 24299, 36425, 55225, 68479, 80135, 121495, 342395, 400675, 607475, 753269, 1711975, 3766345, 18831725]

約数ペア:

[(1, 18831725), (5, 3766345), (11, 1711975), (25, 753269), (31, 607475), (47, 400675), (55, 342395), (155, 121495), (235, 80135), (275, 68479), (341, 55225), (517, 36425), (775, 24299), (1175, 16027), (1457, 12925), (1705, 11045), (2209, 8525), (2585, 7285)]