28076895

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 64788480

約数和(自身を除く): 36711585

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 37, 45, 55, 63, 73, 77, 99, 105, 111, 135, 165, 185, 189, 219, 231, 259, 297, 315, 333, 365, 385, 407, 495, 511, 555, 657, 693, 777, 803, 945, 999, 1095, 1155, 1221, 1295, 1485, 1533, 1665, 1971, 2035, 2079, 2331, 2409, 2555, 2701, 2849, 3285, 3465, 3663, 3885, 4015, 4599, 4995, 5621, 6105, 6993, 7227, 7665, 8103, 8547, 9855, 10395, 10989, 11655, 12045, 13505, 13797, 14245, 16863, 18315, 18907, 21681, 22995, 24309, 25641, 28105, 29711, 34965, 36135, 40515, 42735, 50589, 54945, 56721, 68985, 72927, 76923, 84315, 89133, 94535, 108405, 121545, 128205, 148555, 151767, 170163, 207977, 252945, 267399, 283605, 364635, 384615, 445665, 510489, 623931, 758835, 802197, 850815, 1039885, 1336995, 1871793, 2552445, 3119655, 4010985, 5615379, 9358965, 28076895]

約数ペア:

[(1, 28076895), (3, 9358965), (5, 5615379), (7, 4010985), (9, 3119655), (11, 2552445), (15, 1871793), (21, 1336995), (27, 1039885), (33, 850815), (35, 802197), (37, 758835), (45, 623931), (55, 510489), (63, 445665), (73, 384615), (77, 364635), (99, 283605), (105, 267399), (111, 252945), (135, 207977), (165, 170163), (185, 151767), (189, 148555), (219, 128205), (231, 121545), (259, 108405), (297, 94535), (315, 89133), (333, 84315), (365, 76923), (385, 72927), (407, 68985), (495, 56721), (511, 54945), (555, 50589), (657, 42735), (693, 40515), (777, 36135), (803, 34965), (945, 29711), (999, 28105), (1095, 25641), (1155, 24309), (1221, 22995), (1295, 21681), (1485, 18907), (1533, 18315), (1665, 16863), (1971, 14245), (2035, 13797), (2079, 13505), (2331, 12045), (2409, 11655), (2555, 10989), (2701, 10395), (2849, 9855), (3285, 8547), (3465, 8103), (3663, 7665), (3885, 7227), (4015, 6993), (4599, 6105), (4995, 5621)]