820531595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 1075757760

約数和(自身を除く): 255226165

約数列:

[1, 5, 13, 65, 139, 197, 461, 695, 985, 1807, 2305, 2561, 5993, 9035, 12805, 27383, 29965, 64079, 90817, 136915, 320395, 355979, 454085, 833027, 1180621, 1779895, 4165135, 5903105, 12623563, 63117815, 164106319, 820531595]

約数ペア:

[(1, 820531595), (5, 164106319), (13, 63117815), (65, 12623563), (139, 5903105), (197, 4165135), (461, 1779895), (695, 1180621), (985, 833027), (1807, 454085), (2305, 355979), (2561, 320395), (5993, 136915), (9035, 90817), (12805, 64079), (27383, 29965)]