128002000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:294

約数の個数: 160

約数和(自身を含む): 363976704

約数和(自身を除く): 235974704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 41, 50, 56, 70, 80, 82, 100, 112, 125, 140, 164, 175, 200, 205, 223, 250, 280, 287, 328, 350, 400, 410, 446, 500, 560, 574, 656, 700, 820, 875, 892, 1000, 1025, 1115, 1148, 1400, 1435, 1561, 1640, 1750, 1784, 2000, 2050, 2230, 2296, 2800, 2870, 3122, 3280, 3500, 3568, 4100, 4460, 4592, 5125, 5575, 5740, 6244, 7000, 7175, 7805, 8200, 8920, 9143, 10250, 11150, 11480, 12488, 14000, 14350, 15610, 16400, 17840, 18286, 20500, 22300, 22960, 24976, 27875, 28700, 31220, 35875, 36572, 39025, 41000, 44600, 45715, 55750, 57400, 62440, 64001, 71750, 73144, 78050, 82000, 89200, 91430, 111500, 114800, 124880, 128002, 143500, 146288, 156100, 182860, 195125, 223000, 228575, 256004, 287000, 312200, 320005, 365720, 390250, 446000, 457150, 512008, 574000, 624400, 640010, 731440, 780500, 914300, 1024016, 1142875, 1280020, 1561000, 1600025, 1828600, 2285750, 2560040, 3122000, 3200050, 3657200, 4571500, 5120080, 6400100, 8000125, 9143000, 12800200, 16000250, 18286000, 25600400, 32000500, 64001000, 128002000]

約数ペア:

[(1, 128002000), (2, 64001000), (4, 32000500), (5, 25600400), (7, 18286000), (8, 16000250), (10, 12800200), (14, 9143000), (16, 8000125), (20, 6400100), (25, 5120080), (28, 4571500), (35, 3657200), (40, 3200050), (41, 3122000), (50, 2560040), (56, 2285750), (70, 1828600), (80, 1600025), (82, 1561000), (100, 1280020), (112, 1142875), (125, 1024016), (140, 914300), (164, 780500), (175, 731440), (200, 640010), (205, 624400), (223, 574000), (250, 512008), (280, 457150), (287, 446000), (328, 390250), (350, 365720), (400, 320005), (410, 312200), (446, 287000), (500, 256004), (560, 228575), (574, 223000), (656, 195125), (700, 182860), (820, 156100), (875, 146288), (892, 143500), (1000, 128002), (1025, 124880), (1115, 114800), (1148, 111500), (1400, 91430), (1435, 89200), (1561, 82000), (1640, 78050), (1750, 73144), (1784, 71750), (2000, 64001), (2050, 62440), (2230, 57400), (2296, 55750), (2800, 45715), (2870, 44600), (3122, 41000), (3280, 39025), (3500, 36572), (3568, 35875), (4100, 31220), (4460, 28700), (4592, 27875), (5125, 24976), (5575, 22960), (5740, 22300), (6244, 20500), (7000, 18286), (7175, 17840), (7805, 16400), (8200, 15610), (8920, 14350), (9143, 14000), (10250, 12488), (11150, 11480)]