218645840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 180

約数和(自身を含む): 631433916

約数和(自身を除く): 412788076

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 193, 196, 238, 245, 272, 280, 289, 340, 386, 392, 476, 490, 560, 578, 595, 680, 772, 784, 833, 952, 965, 980, 1156, 1190, 1351, 1360, 1445, 1544, 1666, 1904, 1930, 1960, 2023, 2312, 2380, 2702, 2890, 3088, 3281, 3332, 3860, 3920, 4046, 4165, 4624, 4760, 5404, 5780, 6562, 6664, 6755, 7720, 8092, 8330, 9457, 9520, 10115, 10808, 11560, 13124, 13328, 13510, 14161, 15440, 16184, 16405, 16660, 18914, 20230, 21616, 22967, 23120, 26248, 27020, 28322, 32368, 32810, 33320, 37828, 40460, 45934, 47285, 52496, 54040, 55777, 56644, 65620, 66640, 70805, 75656, 80920, 91868, 94570, 108080, 111554, 113288, 114835, 131240, 141610, 151312, 160769, 161840, 183736, 189140, 223108, 226576, 229670, 262480, 278885, 283220, 321538, 367472, 378280, 390439, 446216, 459340, 557770, 566440, 643076, 756560, 780878, 803845, 892432, 918680, 1115540, 1132880, 1286152, 1561756, 1607690, 1837360, 1952195, 2231080, 2572304, 2733073, 3123512, 3215380, 3904390, 4462160, 5466146, 6247024, 6430760, 7808780, 10932292, 12861520, 13665365, 15617560, 21864584, 27330730, 31235120, 43729168, 54661460, 109322920, 218645840]

約数ペア:

[(1, 218645840), (2, 109322920), (4, 54661460), (5, 43729168), (7, 31235120), (8, 27330730), (10, 21864584), (14, 15617560), (16, 13665365), (17, 12861520), (20, 10932292), (28, 7808780), (34, 6430760), (35, 6247024), (40, 5466146), (49, 4462160), (56, 3904390), (68, 3215380), (70, 3123512), (80, 2733073), (85, 2572304), (98, 2231080), (112, 1952195), (119, 1837360), (136, 1607690), (140, 1561756), (170, 1286152), (193, 1132880), (196, 1115540), (238, 918680), (245, 892432), (272, 803845), (280, 780878), (289, 756560), (340, 643076), (386, 566440), (392, 557770), (476, 459340), (490, 446216), (560, 390439), (578, 378280), (595, 367472), (680, 321538), (772, 283220), (784, 278885), (833, 262480), (952, 229670), (965, 226576), (980, 223108), (1156, 189140), (1190, 183736), (1351, 161840), (1360, 160769), (1445, 151312), (1544, 141610), (1666, 131240), (1904, 114835), (1930, 113288), (1960, 111554), (2023, 108080), (2312, 94570), (2380, 91868), (2702, 80920), (2890, 75656), (3088, 70805), (3281, 66640), (3332, 65620), (3860, 56644), (3920, 55777), (4046, 54040), (4165, 52496), (4624, 47285), (4760, 45934), (5404, 40460), (5780, 37828), (6562, 33320), (6664, 32810), (6755, 32368), (7720, 28322), (8092, 27020), (8330, 26248), (9457, 23120), (9520, 22967), (10115, 21616), (10808, 20230), (11560, 18914), (13124, 16660), (13328, 16405), (13510, 16184), (14161, 15440)]