257425428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:593

約数の個数: 96

約数和(自身を含む): 672345856

約数和(自身を除く): 414920428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 103, 111, 148, 156, 206, 222, 309, 412, 433, 444, 481, 618, 866, 962, 1236, 1299, 1339, 1443, 1732, 1924, 2598, 2678, 2886, 3811, 4017, 5196, 5356, 5629, 5772, 7622, 8034, 11258, 11433, 15244, 16021, 16068, 16887, 22516, 22866, 32042, 33774, 44599, 45732, 48063, 49543, 64084, 67548, 89198, 96126, 99086, 133797, 148629, 178396, 192252, 198172, 208273, 267594, 297258, 416546, 535188, 579787, 594516, 624819, 833092, 1159574, 1249638, 1650163, 1739361, 2319148, 2499276, 3300326, 3478722, 4950489, 6600652, 6957444, 9900978, 19801956, 21452119, 42904238, 64356357, 85808476, 128712714, 257425428]

約数ペア:

[(1, 257425428), (2, 128712714), (3, 85808476), (4, 64356357), (6, 42904238), (12, 21452119), (13, 19801956), (26, 9900978), (37, 6957444), (39, 6600652), (52, 4950489), (74, 3478722), (78, 3300326), (103, 2499276), (111, 2319148), (148, 1739361), (156, 1650163), (206, 1249638), (222, 1159574), (309, 833092), (412, 624819), (433, 594516), (444, 579787), (481, 535188), (618, 416546), (866, 297258), (962, 267594), (1236, 208273), (1299, 198172), (1339, 192252), (1443, 178396), (1732, 148629), (1924, 133797), (2598, 99086), (2678, 96126), (2886, 89198), (3811, 67548), (4017, 64084), (5196, 49543), (5356, 48063), (5629, 45732), (5772, 44599), (7622, 33774), (8034, 32042), (11258, 22866), (11433, 22516), (15244, 16887), (16021, 16068)]