64984580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:824

約数の個数: 48

約数和(自身を含む): 141399216

約数和(自身を除く): 76414636

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 137, 148, 185, 274, 370, 548, 641, 685, 740, 1282, 1370, 2564, 2740, 3205, 5069, 6410, 10138, 12820, 20276, 23717, 25345, 47434, 50690, 87817, 94868, 101380, 118585, 175634, 237170, 351268, 439085, 474340, 878170, 1756340, 3249229, 6498458, 12996916, 16246145, 32492290, 64984580]

約数ペア:

[(1, 64984580), (2, 32492290), (4, 16246145), (5, 12996916), (10, 6498458), (20, 3249229), (37, 1756340), (74, 878170), (137, 474340), (148, 439085), (185, 351268), (274, 237170), (370, 175634), (548, 118585), (641, 101380), (685, 94868), (740, 87817), (1282, 50690), (1370, 47434), (2564, 25345), (2740, 23717), (3205, 20276), (5069, 12820), (6410, 10138)]