128212875

素因数分解:

$3^7\times 5^3\times 7^1\times {\mathrm{67}}^1$

素因数の和:110

約数の個数: 128

約数和(自身を含む): 278353920

約数和(自身を除く): 150141045

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 67, 75, 81, 105, 125, 135, 175, 189, 201, 225, 243, 315, 335, 375, 405, 469, 525, 567, 603, 675, 729, 875, 945, 1005, 1125, 1215, 1407, 1575, 1675, 1701, 1809, 2025, 2187, 2345, 2625, 2835, 3015, 3375, 3645, 4221, 4725, 5025, 5103, 5427, 6075, 7035, 7875, 8375, 8505, 9045, 10125, 10935, 11725, 12663, 14175, 15075, 15309, 16281, 18225, 21105, 23625, 25125, 25515, 27135, 30375, 35175, 37989, 42525, 45225, 48843, 54675, 58625, 63315, 70875, 75375, 76545, 81405, 91125, 105525, 113967, 127575, 135675, 146529, 175875, 189945, 212625, 226125, 244215, 273375, 316575, 341901, 382725, 407025, 527625, 569835, 637875, 678375, 732645, 949725, 1025703, 1221075, 1582875, 1709505, 1913625, 2035125, 2849175, 3663225, 4748625, 5128515, 6105375, 8547525, 14245875, 18316125, 25642575, 42737625, 128212875]

約数ペア:

[(1, 128212875), (3, 42737625), (5, 25642575), (7, 18316125), (9, 14245875), (15, 8547525), (21, 6105375), (25, 5128515), (27, 4748625), (35, 3663225), (45, 2849175), (63, 2035125), (67, 1913625), (75, 1709505), (81, 1582875), (105, 1221075), (125, 1025703), (135, 949725), (175, 732645), (189, 678375), (201, 637875), (225, 569835), (243, 527625), (315, 407025), (335, 382725), (375, 341901), (405, 316575), (469, 273375), (525, 244215), (567, 226125), (603, 212625), (675, 189945), (729, 175875), (875, 146529), (945, 135675), (1005, 127575), (1125, 113967), (1215, 105525), (1407, 91125), (1575, 81405), (1675, 76545), (1701, 75375), (1809, 70875), (2025, 63315), (2187, 58625), (2345, 54675), (2625, 48843), (2835, 45225), (3015, 42525), (3375, 37989), (3645, 35175), (4221, 30375), (4725, 27135), (5025, 25515), (5103, 25125), (5427, 23625), (6075, 21105), (7035, 18225), (7875, 16281), (8375, 15309), (8505, 15075), (9045, 14175), (10125, 12663), (10935, 11725)]