257511296

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 618332160

約数和(自身を除く): 360820864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 73, 112, 124, 127, 128, 146, 217, 224, 248, 254, 292, 434, 448, 496, 508, 511, 584, 868, 889, 896, 992, 1016, 1022, 1168, 1736, 1778, 1984, 2032, 2044, 2263, 2336, 3472, 3556, 3937, 3968, 4064, 4088, 4526, 4672, 6944, 7112, 7874, 8128, 8176, 9052, 9271, 9344, 13888, 14224, 15748, 15841, 16256, 16352, 18104, 18542, 27559, 27776, 28448, 31496, 31682, 32704, 36208, 37084, 55118, 56896, 62992, 63364, 64897, 65408, 72416, 74168, 110236, 113792, 125984, 126728, 129794, 144832, 148336, 220472, 251968, 253456, 259588, 287401, 289664, 296672, 440944, 503936, 506912, 519176, 574802, 593344, 881888, 1013824, 1038352, 1149604, 1186688, 1763776, 2011807, 2027648, 2076704, 2299208, 3527552, 4023614, 4153408, 4598416, 8047228, 8306816, 9196832, 16094456, 18393664, 32188912, 36787328, 64377824, 128755648, 257511296]

約数ペア:

[(1, 257511296), (2, 128755648), (4, 64377824), (7, 36787328), (8, 32188912), (14, 18393664), (16, 16094456), (28, 9196832), (31, 8306816), (32, 8047228), (56, 4598416), (62, 4153408), (64, 4023614), (73, 3527552), (112, 2299208), (124, 2076704), (127, 2027648), (128, 2011807), (146, 1763776), (217, 1186688), (224, 1149604), (248, 1038352), (254, 1013824), (292, 881888), (434, 593344), (448, 574802), (496, 519176), (508, 506912), (511, 503936), (584, 440944), (868, 296672), (889, 289664), (896, 287401), (992, 259588), (1016, 253456), (1022, 251968), (1168, 220472), (1736, 148336), (1778, 144832), (1984, 129794), (2032, 126728), (2044, 125984), (2263, 113792), (2336, 110236), (3472, 74168), (3556, 72416), (3937, 65408), (3968, 64897), (4064, 63364), (4088, 62992), (4526, 56896), (4672, 55118), (6944, 37084), (7112, 36208), (7874, 32704), (8128, 31682), (8176, 31496), (9052, 28448), (9271, 27776), (9344, 27559), (13888, 18542), (14224, 18104), (15748, 16352), (15841, 16256)]