257702907

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 463325184

約数和(自身を除く): 205622277

約数列:

[1, 3, 7, 11, 21, 31, 33, 49, 53, 77, 93, 97, 147, 159, 217, 231, 291, 341, 371, 539, 583, 651, 679, 1023, 1067, 1113, 1519, 1617, 1643, 1749, 2037, 2387, 2597, 3007, 3201, 4081, 4557, 4753, 4929, 5141, 7161, 7469, 7791, 9021, 11501, 12243, 14259, 15423, 16709, 18073, 21049, 22407, 28567, 33077, 34503, 35987, 50127, 52283, 54219, 56551, 63147, 80507, 85701, 99231, 107961, 126511, 147343, 156849, 159371, 169653, 231539, 241521, 251909, 379533, 395857, 442029, 478113, 694617, 755727, 885577, 1115597, 1187571, 1620773, 1753081, 2656731, 2770999, 3346791, 4862319, 5259243, 7809179, 8312997, 12271567, 23427537, 36814701, 85900969, 257702907]

約数ペア:

[(1, 257702907), (3, 85900969), (7, 36814701), (11, 23427537), (21, 12271567), (31, 8312997), (33, 7809179), (49, 5259243), (53, 4862319), (77, 3346791), (93, 2770999), (97, 2656731), (147, 1753081), (159, 1620773), (217, 1187571), (231, 1115597), (291, 885577), (341, 755727), (371, 694617), (539, 478113), (583, 442029), (651, 395857), (679, 379533), (1023, 251909), (1067, 241521), (1113, 231539), (1519, 169653), (1617, 159371), (1643, 156849), (1749, 147343), (2037, 126511), (2387, 107961), (2597, 99231), (3007, 85701), (3201, 80507), (4081, 63147), (4557, 56551), (4753, 54219), (4929, 52283), (5141, 50127), (7161, 35987), (7469, 34503), (7791, 33077), (9021, 28567), (11501, 22407), (12243, 21049), (14259, 18073), (15423, 16709)]