278771584

素因数分解:

$2^7\times 7^2\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 702214920

約数和(自身を除く): 423443336

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 128, 169, 182, 196, 208, 224, 263, 338, 364, 392, 416, 448, 526, 637, 676, 728, 784, 832, 896, 1052, 1183, 1274, 1352, 1456, 1568, 1664, 1841, 2104, 2366, 2548, 2704, 2912, 3136, 3419, 3682, 4208, 4732, 5096, 5408, 5824, 6272, 6838, 7364, 8281, 8416, 9464, 10192, 10816, 11648, 12887, 13676, 14728, 16562, 16832, 18928, 20384, 21632, 23933, 25774, 27352, 29456, 33124, 33664, 37856, 40768, 44447, 47866, 51548, 54704, 58912, 66248, 75712, 81536, 88894, 95732, 103096, 109408, 117824, 132496, 151424, 167531, 177788, 191464, 206192, 218816, 235648, 264992, 311129, 335062, 355576, 382928, 412384, 437632, 529984, 622258, 670124, 711152, 765856, 824768, 1059968, 1244516, 1340248, 1422304, 1531712, 1649536, 2177903, 2489032, 2680496, 2844608, 3063424, 4355806, 4978064, 5360992, 5689216, 8711612, 9956128, 10721984, 17423224, 19912256, 21443968, 34846448, 39824512, 69692896, 139385792, 278771584]

約数ペア:

[(1, 278771584), (2, 139385792), (4, 69692896), (7, 39824512), (8, 34846448), (13, 21443968), (14, 19912256), (16, 17423224), (26, 10721984), (28, 9956128), (32, 8711612), (49, 5689216), (52, 5360992), (56, 4978064), (64, 4355806), (91, 3063424), (98, 2844608), (104, 2680496), (112, 2489032), (128, 2177903), (169, 1649536), (182, 1531712), (196, 1422304), (208, 1340248), (224, 1244516), (263, 1059968), (338, 824768), (364, 765856), (392, 711152), (416, 670124), (448, 622258), (526, 529984), (637, 437632), (676, 412384), (728, 382928), (784, 355576), (832, 335062), (896, 311129), (1052, 264992), (1183, 235648), (1274, 218816), (1352, 206192), (1456, 191464), (1568, 177788), (1664, 167531), (1841, 151424), (2104, 132496), (2366, 117824), (2548, 109408), (2704, 103096), (2912, 95732), (3136, 88894), (3419, 81536), (3682, 75712), (4208, 66248), (4732, 58912), (5096, 54704), (5408, 51548), (5824, 47866), (6272, 44447), (6838, 40768), (7364, 37856), (8281, 33664), (8416, 33124), (9464, 29456), (10192, 27352), (10816, 25774), (11648, 23933), (12887, 21632), (13676, 20384), (14728, 18928), (16562, 16832)]