68207265

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{491}}^1$

素因数の和:529

約数の個数: 80

約数和(自身を含む): 142876800

約数和(自身を除く): 74669535

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 343, 405, 441, 491, 567, 735, 945, 1029, 1323, 1473, 1715, 2205, 2455, 2835, 3087, 3437, 3969, 4419, 5145, 6615, 7365, 9261, 10311, 13257, 15435, 17185, 19845, 22095, 24059, 27783, 30933, 39771, 46305, 51555, 66285, 72177, 92799, 120295, 138915, 154665, 168413, 198855, 216531, 278397, 360885, 463995, 505239, 649593, 842065, 1082655, 1391985, 1515717, 1948779, 2526195, 3247965, 4547151, 7578585, 9743895, 13641453, 22735755, 68207265]

約数ペア:

[(1, 68207265), (3, 22735755), (5, 13641453), (7, 9743895), (9, 7578585), (15, 4547151), (21, 3247965), (27, 2526195), (35, 1948779), (45, 1515717), (49, 1391985), (63, 1082655), (81, 842065), (105, 649593), (135, 505239), (147, 463995), (189, 360885), (245, 278397), (315, 216531), (343, 198855), (405, 168413), (441, 154665), (491, 138915), (567, 120295), (735, 92799), (945, 72177), (1029, 66285), (1323, 51555), (1473, 46305), (1715, 39771), (2205, 30933), (2455, 27783), (2835, 24059), (3087, 22095), (3437, 19845), (3969, 17185), (4419, 15435), (5145, 13257), (6615, 10311), (7365, 9261)]