1781624320

素因数分解:

$2^9\times 5^1\times 7^3\times {\mathrm{2029}}^1$

素因数の和:2073

約数の個数: 160

約数和(自身を含む): 4984056000

約数和(自身を除く): 3202431680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 343, 392, 448, 490, 512, 560, 640, 686, 784, 896, 980, 1120, 1280, 1372, 1568, 1715, 1792, 1960, 2029, 2240, 2560, 2744, 3136, 3430, 3584, 3920, 4058, 4480, 5488, 6272, 6860, 7840, 8116, 8960, 10145, 10976, 12544, 13720, 14203, 15680, 16232, 17920, 20290, 21952, 25088, 27440, 28406, 31360, 32464, 40580, 43904, 54880, 56812, 62720, 64928, 71015, 81160, 87808, 99421, 109760, 113624, 125440, 129856, 142030, 162320, 175616, 198842, 219520, 227248, 259712, 284060, 324640, 397684, 439040, 454496, 497105, 519424, 568120, 649280, 695947, 795368, 878080, 908992, 994210, 1038848, 1136240, 1298560, 1391894, 1590736, 1817984, 1988420, 2272480, 2597120, 2783788, 3181472, 3479735, 3635968, 3976840, 4544960, 5194240, 5567576, 6362944, 6959470, 7271936, 7953680, 9089920, 11135152, 12725888, 13918940, 15907360, 18179840, 22270304, 25451776, 27837880, 31814720, 36359680, 44540608, 50903552, 55675760, 63629440, 89081216, 111351520, 127258880, 178162432, 222703040, 254517760, 356324864, 445406080, 890812160, 1781624320]

約数ペア:

[(1, 1781624320), (2, 890812160), (4, 445406080), (5, 356324864), (7, 254517760), (8, 222703040), (10, 178162432), (14, 127258880), (16, 111351520), (20, 89081216), (28, 63629440), (32, 55675760), (35, 50903552), (40, 44540608), (49, 36359680), (56, 31814720), (64, 27837880), (70, 25451776), (80, 22270304), (98, 18179840), (112, 15907360), (128, 13918940), (140, 12725888), (160, 11135152), (196, 9089920), (224, 7953680), (245, 7271936), (256, 6959470), (280, 6362944), (320, 5567576), (343, 5194240), (392, 4544960), (448, 3976840), (490, 3635968), (512, 3479735), (560, 3181472), (640, 2783788), (686, 2597120), (784, 2272480), (896, 1988420), (980, 1817984), (1120, 1590736), (1280, 1391894), (1372, 1298560), (1568, 1136240), (1715, 1038848), (1792, 994210), (1960, 908992), (2029, 878080), (2240, 795368), (2560, 695947), (2744, 649280), (3136, 568120), (3430, 519424), (3584, 497105), (3920, 454496), (4058, 439040), (4480, 397684), (5488, 324640), (6272, 284060), (6860, 259712), (7840, 227248), (8116, 219520), (8960, 198842), (10145, 175616), (10976, 162320), (12544, 142030), (13720, 129856), (14203, 125440), (15680, 113624), (16232, 109760), (17920, 99421), (20290, 87808), (21952, 81160), (25088, 71015), (27440, 64928), (28406, 62720), (31360, 56812), (32464, 54880), (40580, 43904)]