78928640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 226050048

約数和(自身を除く): 147121408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 383, 448, 460, 560, 640, 644, 736, 766, 805, 896, 920, 1120, 1280, 1288, 1472, 1532, 1610, 1792, 1840, 1915, 2240, 2576, 2681, 2944, 3064, 3220, 3680, 3830, 4480, 5152, 5362, 5888, 6128, 6440, 7360, 7660, 8809, 8960, 10304, 10724, 12256, 12880, 13405, 14720, 15320, 17618, 20608, 21448, 24512, 25760, 26810, 29440, 30640, 35236, 41216, 42896, 44045, 49024, 51520, 53620, 61280, 61663, 70472, 85792, 88090, 98048, 103040, 107240, 122560, 123326, 140944, 171584, 176180, 206080, 214480, 245120, 246652, 281888, 308315, 343168, 352360, 428960, 490240, 493304, 563776, 616630, 686336, 704720, 857920, 986608, 1127552, 1233260, 1409440, 1715840, 1973216, 2255104, 2466520, 2818880, 3431680, 3946432, 4933040, 5637760, 7892864, 9866080, 11275520, 15785728, 19732160, 39464320, 78928640]

約数ペア:

[(1, 78928640), (2, 39464320), (4, 19732160), (5, 15785728), (7, 11275520), (8, 9866080), (10, 7892864), (14, 5637760), (16, 4933040), (20, 3946432), (23, 3431680), (28, 2818880), (32, 2466520), (35, 2255104), (40, 1973216), (46, 1715840), (56, 1409440), (64, 1233260), (70, 1127552), (80, 986608), (92, 857920), (112, 704720), (115, 686336), (128, 616630), (140, 563776), (160, 493304), (161, 490240), (184, 428960), (224, 352360), (230, 343168), (256, 308315), (280, 281888), (320, 246652), (322, 245120), (368, 214480), (383, 206080), (448, 176180), (460, 171584), (560, 140944), (640, 123326), (644, 122560), (736, 107240), (766, 103040), (805, 98048), (896, 88090), (920, 85792), (1120, 70472), (1280, 61663), (1288, 61280), (1472, 53620), (1532, 51520), (1610, 49024), (1792, 44045), (1840, 42896), (1915, 41216), (2240, 35236), (2576, 30640), (2681, 29440), (2944, 26810), (3064, 25760), (3220, 24512), (3680, 21448), (3830, 20608), (4480, 17618), (5152, 15320), (5362, 14720), (5888, 13405), (6128, 12880), (6440, 12256), (7360, 10724), (7660, 10304), (8809, 8960)]