216980775

素因数分解:

$3^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 467970048

約数和(自身を除く): 250989273

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 27, 33, 45, 51, 55, 75, 81, 85, 99, 135, 153, 165, 187, 191, 225, 243, 255, 275, 297, 405, 425, 459, 495, 561, 573, 675, 765, 825, 891, 935, 955, 1215, 1275, 1377, 1485, 1683, 1719, 2025, 2101, 2295, 2475, 2673, 2805, 2865, 3247, 3825, 4131, 4455, 4675, 4775, 5049, 5157, 6075, 6303, 6885, 7425, 8415, 8595, 9741, 10505, 11475, 13365, 14025, 14325, 15147, 15471, 16235, 18909, 20655, 22275, 25245, 25785, 29223, 31515, 34425, 35717, 42075, 42975, 45441, 46413, 48705, 52525, 56727, 66825, 75735, 77355, 81175, 87669, 94545, 103275, 107151, 126225, 128925, 146115, 157575, 170181, 178585, 227205, 232065, 243525, 263007, 283635, 321453, 378675, 386775, 438345, 472725, 510543, 535755, 730575, 789021, 850905, 892925, 964359, 1136025, 1160325, 1315035, 1418175, 1607265, 2191725, 2552715, 2678775, 2893077, 3945105, 4254525, 4821795, 6575175, 8036325, 8679231, 12763575, 14465385, 19725525, 24108975, 43396155, 72326925, 216980775]

約数ペア:

[(1, 216980775), (3, 72326925), (5, 43396155), (9, 24108975), (11, 19725525), (15, 14465385), (17, 12763575), (25, 8679231), (27, 8036325), (33, 6575175), (45, 4821795), (51, 4254525), (55, 3945105), (75, 2893077), (81, 2678775), (85, 2552715), (99, 2191725), (135, 1607265), (153, 1418175), (165, 1315035), (187, 1160325), (191, 1136025), (225, 964359), (243, 892925), (255, 850905), (275, 789021), (297, 730575), (405, 535755), (425, 510543), (459, 472725), (495, 438345), (561, 386775), (573, 378675), (675, 321453), (765, 283635), (825, 263007), (891, 243525), (935, 232065), (955, 227205), (1215, 178585), (1275, 170181), (1377, 157575), (1485, 146115), (1683, 128925), (1719, 126225), (2025, 107151), (2101, 103275), (2295, 94545), (2475, 87669), (2673, 81175), (2805, 77355), (2865, 75735), (3247, 66825), (3825, 56727), (4131, 52525), (4455, 48705), (4675, 46413), (4775, 45441), (5049, 42975), (5157, 42075), (6075, 35717), (6303, 34425), (6885, 31515), (7425, 29223), (8415, 25785), (8595, 25245), (9741, 22275), (10505, 20655), (11475, 18909), (13365, 16235), (14025, 15471), (14325, 15147)]