25720254

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:671

約数の個数: 80

約数和(自身を含む): 67756128

約数和(自身を除く): 42035874

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 81, 111, 126, 162, 189, 222, 259, 333, 378, 518, 567, 613, 666, 777, 999, 1134, 1226, 1554, 1839, 1998, 2331, 2997, 3678, 4291, 4662, 5517, 5994, 6993, 8582, 11034, 12873, 13986, 16551, 20979, 22681, 25746, 33102, 38619, 41958, 45362, 49653, 68043, 77238, 99306, 115857, 136086, 158767, 204129, 231714, 317534, 347571, 408258, 476301, 612387, 695142, 952602, 1224774, 1428903, 1837161, 2857806, 3674322, 4286709, 8573418, 12860127, 25720254]

約数ペア:

[(1, 25720254), (2, 12860127), (3, 8573418), (6, 4286709), (7, 3674322), (9, 2857806), (14, 1837161), (18, 1428903), (21, 1224774), (27, 952602), (37, 695142), (42, 612387), (54, 476301), (63, 408258), (74, 347571), (81, 317534), (111, 231714), (126, 204129), (162, 158767), (189, 136086), (222, 115857), (259, 99306), (333, 77238), (378, 68043), (518, 49653), (567, 45362), (613, 41958), (666, 38619), (777, 33102), (999, 25746), (1134, 22681), (1226, 20979), (1554, 16551), (1839, 13986), (1998, 12873), (2331, 11034), (2997, 8582), (3678, 6993), (4291, 5994), (4662, 5517)]