649888915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{2657}}^1$

素因数の和:2799

約数の個数: 32

約数和(自身を含む): 868081536

約数和(自身を除く): 218192621

約数列:

[1, 5, 13, 53, 65, 71, 265, 355, 689, 923, 2657, 3445, 3763, 4615, 13285, 18815, 34541, 48919, 140821, 172705, 188647, 244595, 704105, 943235, 1830673, 2452411, 9153365, 9998291, 12262055, 49991455, 129977783, 649888915]

約数ペア:

[(1, 649888915), (5, 129977783), (13, 49991455), (53, 12262055), (65, 9998291), (71, 9153365), (265, 2452411), (355, 1830673), (689, 943235), (923, 704105), (2657, 244595), (3445, 188647), (3763, 172705), (4615, 140821), (13285, 48919), (18815, 34541)]