8520785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 12832512

約数和(自身を除く): 4311727

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 307, 427, 455, 793, 1535, 2135, 2149, 3965, 3991, 5551, 10745, 18727, 19955, 27755, 27937, 93635, 131089, 139685, 243451, 655445, 1217255, 1704157, 8520785]

約数ペア:

[(1, 8520785), (5, 1704157), (7, 1217255), (13, 655445), (35, 243451), (61, 139685), (65, 131089), (91, 93635), (305, 27937), (307, 27755), (427, 19955), (455, 18727), (793, 10745), (1535, 5551), (2135, 3991), (2149, 3965)]