28160440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 81285120

約数和(自身を除く): 53124680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 82, 88, 110, 140, 154, 164, 205, 220, 223, 280, 287, 308, 328, 385, 410, 440, 446, 451, 574, 616, 770, 820, 892, 902, 1115, 1148, 1435, 1540, 1561, 1640, 1784, 1804, 2230, 2255, 2296, 2453, 2870, 3080, 3122, 3157, 3608, 4460, 4510, 4906, 5740, 6244, 6314, 7805, 8920, 9020, 9143, 9812, 11480, 12265, 12488, 12628, 15610, 15785, 17171, 18040, 18286, 19624, 24530, 25256, 31220, 31570, 34342, 36572, 45715, 49060, 62440, 63140, 64001, 68684, 73144, 85855, 91430, 98120, 100573, 126280, 128002, 137368, 171710, 182860, 201146, 256004, 320005, 343420, 365720, 402292, 502865, 512008, 640010, 686840, 704011, 804584, 1005730, 1280020, 1408022, 2011460, 2560040, 2816044, 3520055, 4022920, 5632088, 7040110, 14080220, 28160440]

約数ペア:

[(1, 28160440), (2, 14080220), (4, 7040110), (5, 5632088), (7, 4022920), (8, 3520055), (10, 2816044), (11, 2560040), (14, 2011460), (20, 1408022), (22, 1280020), (28, 1005730), (35, 804584), (40, 704011), (41, 686840), (44, 640010), (55, 512008), (56, 502865), (70, 402292), (77, 365720), (82, 343420), (88, 320005), (110, 256004), (140, 201146), (154, 182860), (164, 171710), (205, 137368), (220, 128002), (223, 126280), (280, 100573), (287, 98120), (308, 91430), (328, 85855), (385, 73144), (410, 68684), (440, 64001), (446, 63140), (451, 62440), (574, 49060), (616, 45715), (770, 36572), (820, 34342), (892, 31570), (902, 31220), (1115, 25256), (1148, 24530), (1435, 19624), (1540, 18286), (1561, 18040), (1640, 17171), (1784, 15785), (1804, 15610), (2230, 12628), (2255, 12488), (2296, 12265), (2453, 11480), (2870, 9812), (3080, 9143), (3122, 9020), (3157, 8920), (3608, 7805), (4460, 6314), (4510, 6244), (4906, 5740)]