31909075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 47139840

約数和(自身を除く): 15230765

約数列:

[1, 5, 11, 19, 25, 31, 55, 95, 155, 197, 209, 275, 341, 475, 589, 775, 985, 1045, 1705, 2167, 2945, 3743, 4925, 5225, 6107, 6479, 8525, 10835, 14725, 18715, 30535, 32395, 41173, 54175, 67177, 93575, 116033, 152675, 161975, 205865, 335885, 580165, 1029325, 1276363, 1679425, 2900825, 6381815, 31909075]

約数ペア:

[(1, 31909075), (5, 6381815), (11, 2900825), (19, 1679425), (25, 1276363), (31, 1029325), (55, 580165), (95, 335885), (155, 205865), (197, 161975), (209, 152675), (275, 116033), (341, 93575), (475, 67177), (589, 54175), (775, 41173), (985, 32395), (1045, 30535), (1705, 18715), (2167, 14725), (2945, 10835), (3743, 8525), (4925, 6479), (5225, 6107)]