128914688

素因数分解:

$2^8\times 7^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 108

約数和(自身を含む): 307581120

約数和(自身を除く): 178666432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 86, 98, 112, 128, 172, 196, 224, 239, 256, 301, 344, 392, 448, 478, 602, 688, 784, 896, 956, 1204, 1376, 1568, 1673, 1792, 1912, 2107, 2408, 2752, 3136, 3346, 3824, 4214, 4816, 5504, 6272, 6692, 7648, 8428, 9632, 10277, 11008, 11711, 12544, 13384, 15296, 16856, 19264, 20554, 23422, 26768, 30592, 33712, 38528, 41108, 46844, 53536, 61184, 67424, 71939, 77056, 82216, 93688, 107072, 134848, 143878, 164432, 187376, 214144, 269696, 287756, 328864, 374752, 428288, 503573, 539392, 575512, 657728, 749504, 1007146, 1151024, 1315456, 1499008, 2014292, 2302048, 2630912, 2998016, 4028584, 4604096, 8057168, 9208192, 16114336, 18416384, 32228672, 64457344, 128914688]

約数ペア:

[(1, 128914688), (2, 64457344), (4, 32228672), (7, 18416384), (8, 16114336), (14, 9208192), (16, 8057168), (28, 4604096), (32, 4028584), (43, 2998016), (49, 2630912), (56, 2302048), (64, 2014292), (86, 1499008), (98, 1315456), (112, 1151024), (128, 1007146), (172, 749504), (196, 657728), (224, 575512), (239, 539392), (256, 503573), (301, 428288), (344, 374752), (392, 328864), (448, 287756), (478, 269696), (602, 214144), (688, 187376), (784, 164432), (896, 143878), (956, 134848), (1204, 107072), (1376, 93688), (1568, 82216), (1673, 77056), (1792, 71939), (1912, 67424), (2107, 61184), (2408, 53536), (2752, 46844), (3136, 41108), (3346, 38528), (3824, 33712), (4214, 30592), (4816, 26768), (5504, 23422), (6272, 20554), (6692, 19264), (7648, 16856), (8428, 15296), (9632, 13384), (10277, 12544), (11008, 11711)]