255137280

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:404

約数の個数: 160

約数和(自身を含む): 824947200

約数和(自身を除く): 569809920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 239, 240, 256, 278, 320, 384, 417, 478, 480, 512, 556, 640, 695, 717, 768, 834, 956, 960, 1112, 1195, 1280, 1390, 1434, 1536, 1668, 1912, 1920, 2085, 2224, 2390, 2560, 2780, 2868, 3336, 3585, 3824, 3840, 4170, 4448, 4780, 5560, 5736, 6672, 7170, 7648, 7680, 8340, 8896, 9560, 11120, 11472, 13344, 14340, 15296, 16680, 17792, 19120, 22240, 22944, 26688, 28680, 30592, 33221, 33360, 35584, 38240, 44480, 45888, 53376, 57360, 61184, 66442, 66720, 71168, 76480, 88960, 91776, 99663, 106752, 114720, 122368, 132884, 133440, 152960, 166105, 177920, 183552, 199326, 213504, 229440, 265768, 266880, 305920, 332210, 355840, 367104, 398652, 458880, 498315, 531536, 533760, 611840, 664420, 797304, 917760, 996630, 1063072, 1067520, 1328840, 1594608, 1835520, 1993260, 2126144, 2657680, 3189216, 3986520, 4252288, 5315360, 6378432, 7973040, 8504576, 10630720, 12756864, 15946080, 17009152, 21261440, 25513728, 31892160, 42522880, 51027456, 63784320, 85045760, 127568640, 255137280]

約数ペア:

[(1, 255137280), (2, 127568640), (3, 85045760), (4, 63784320), (5, 51027456), (6, 42522880), (8, 31892160), (10, 25513728), (12, 21261440), (15, 17009152), (16, 15946080), (20, 12756864), (24, 10630720), (30, 8504576), (32, 7973040), (40, 6378432), (48, 5315360), (60, 4252288), (64, 3986520), (80, 3189216), (96, 2657680), (120, 2126144), (128, 1993260), (139, 1835520), (160, 1594608), (192, 1328840), (239, 1067520), (240, 1063072), (256, 996630), (278, 917760), (320, 797304), (384, 664420), (417, 611840), (478, 533760), (480, 531536), (512, 498315), (556, 458880), (640, 398652), (695, 367104), (717, 355840), (768, 332210), (834, 305920), (956, 266880), (960, 265768), (1112, 229440), (1195, 213504), (1280, 199326), (1390, 183552), (1434, 177920), (1536, 166105), (1668, 152960), (1912, 133440), (1920, 132884), (2085, 122368), (2224, 114720), (2390, 106752), (2560, 99663), (2780, 91776), (2868, 88960), (3336, 76480), (3585, 71168), (3824, 66720), (3840, 66442), (4170, 61184), (4448, 57360), (4780, 53376), (5560, 45888), (5736, 44480), (6672, 38240), (7170, 35584), (7648, 33360), (7680, 33221), (8340, 30592), (8896, 28680), (9560, 26688), (11120, 22944), (11472, 22240), (13344, 19120), (14340, 17792), (15296, 16680)]