252181995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{599}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 464486400

約数和(自身を除く): 212304405

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 127, 195, 221, 255, 381, 599, 635, 663, 1105, 1651, 1797, 1905, 2159, 2995, 3315, 4953, 6477, 7787, 8255, 8985, 10183, 10795, 23361, 24765, 28067, 30549, 32385, 38935, 50915, 76073, 84201, 116805, 132379, 140335, 152745, 228219, 380365, 397137, 421005, 661895, 988949, 1141095, 1293241, 1985685, 2966847, 3879723, 4944745, 6466205, 14834235, 16812133, 19398615, 50436399, 84060665, 252181995]

約数ペア:

[(1, 252181995), (3, 84060665), (5, 50436399), (13, 19398615), (15, 16812133), (17, 14834235), (39, 6466205), (51, 4944745), (65, 3879723), (85, 2966847), (127, 1985685), (195, 1293241), (221, 1141095), (255, 988949), (381, 661895), (599, 421005), (635, 397137), (663, 380365), (1105, 228219), (1651, 152745), (1797, 140335), (1905, 132379), (2159, 116805), (2995, 84201), (3315, 76073), (4953, 50915), (6477, 38935), (7787, 32385), (8255, 30549), (8985, 28067), (10183, 24765), (10795, 23361)]