78720315

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 134221824

約数和(自身を除く): 55501509

約数列:

[1, 3, 5, 15, 31, 43, 93, 127, 129, 155, 215, 381, 465, 635, 645, 961, 1333, 1905, 2883, 3937, 3999, 4805, 5461, 6665, 11811, 14415, 16383, 19685, 19995, 27305, 41323, 59055, 81915, 122047, 123969, 169291, 206615, 366141, 507873, 610235, 619845, 846455, 1830705, 2539365, 5248021, 15744063, 26240105, 78720315]

約数ペア:

[(1, 78720315), (3, 26240105), (5, 15744063), (15, 5248021), (31, 2539365), (43, 1830705), (93, 846455), (127, 619845), (129, 610235), (155, 507873), (215, 366141), (381, 206615), (465, 169291), (635, 123969), (645, 122047), (961, 81915), (1333, 59055), (1905, 41323), (2883, 27305), (3937, 19995), (3999, 19685), (4805, 16383), (5461, 14415), (6665, 11811)]