25409280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 87564960

約数和(自身を除く): 62155680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 509, 520, 624, 640, 768, 780, 832, 960, 1018, 1040, 1248, 1280, 1527, 1560, 1664, 1920, 2036, 2080, 2496, 2545, 3054, 3120, 3328, 3840, 4072, 4160, 4992, 5090, 6108, 6240, 6617, 7635, 8144, 8320, 9984, 10180, 12216, 12480, 13234, 15270, 16288, 16640, 19851, 20360, 24432, 24960, 26468, 30540, 32576, 33085, 39702, 40720, 48864, 49920, 52936, 61080, 65152, 66170, 79404, 81440, 97728, 99255, 105872, 122160, 130304, 132340, 158808, 162880, 195456, 198510, 211744, 244320, 264680, 317616, 325760, 390912, 397020, 423488, 488640, 529360, 635232, 651520, 794040, 846976, 977280, 1058720, 1270464, 1588080, 1693952, 1954560, 2117440, 2540928, 3176160, 4234880, 5081856, 6352320, 8469760, 12704640, 25409280]

約数ペア:

[(1, 25409280), (2, 12704640), (3, 8469760), (4, 6352320), (5, 5081856), (6, 4234880), (8, 3176160), (10, 2540928), (12, 2117440), (13, 1954560), (15, 1693952), (16, 1588080), (20, 1270464), (24, 1058720), (26, 977280), (30, 846976), (32, 794040), (39, 651520), (40, 635232), (48, 529360), (52, 488640), (60, 423488), (64, 397020), (65, 390912), (78, 325760), (80, 317616), (96, 264680), (104, 244320), (120, 211744), (128, 198510), (130, 195456), (156, 162880), (160, 158808), (192, 132340), (195, 130304), (208, 122160), (240, 105872), (256, 99255), (260, 97728), (312, 81440), (320, 79404), (384, 66170), (390, 65152), (416, 61080), (480, 52936), (509, 49920), (520, 48864), (624, 40720), (640, 39702), (768, 33085), (780, 32576), (832, 30540), (960, 26468), (1018, 24960), (1040, 24432), (1248, 20360), (1280, 19851), (1527, 16640), (1560, 16288), (1664, 15270), (1920, 13234), (2036, 12480), (2080, 12216), (2496, 10180), (2545, 9984), (3054, 8320), (3120, 8144), (3328, 7635), (3840, 6617), (4072, 6240), (4160, 6108), (4992, 5090)]