80161815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 136128384

約数和(自身を除く): 55966569

約数列:

[1, 3, 5, 15, 31, 67, 83, 93, 155, 201, 249, 335, 415, 465, 961, 1005, 1245, 2077, 2573, 2883, 4805, 5561, 6231, 7719, 10385, 12865, 14415, 16683, 27805, 31155, 38595, 64387, 79763, 83415, 172391, 193161, 239289, 321935, 398815, 517173, 861955, 965805, 1196445, 2585865, 5344121, 16032363, 26720605, 80161815]

約数ペア:

[(1, 80161815), (3, 26720605), (5, 16032363), (15, 5344121), (31, 2585865), (67, 1196445), (83, 965805), (93, 861955), (155, 517173), (201, 398815), (249, 321935), (335, 239289), (415, 193161), (465, 172391), (961, 83415), (1005, 79763), (1245, 64387), (2077, 38595), (2573, 31155), (2883, 27805), (4805, 16683), (5561, 14415), (6231, 12865), (7719, 10385)]