20581491728

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2221}}^1$

素因数の和:2441

約数の個数: 160

約数和(自身を含む): 50150504448

約数和(自身を除く): 29569012720

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 34, 56, 62, 68, 112, 119, 124, 136, 157, 217, 238, 248, 272, 314, 434, 476, 496, 527, 628, 868, 952, 1054, 1099, 1256, 1736, 1904, 2108, 2198, 2221, 2512, 2669, 3472, 3689, 4216, 4396, 4442, 4867, 5338, 7378, 8432, 8792, 8884, 9734, 10676, 14756, 15547, 17584, 17768, 18683, 19468, 21352, 29512, 31094, 34069, 35536, 37366, 37757, 38936, 42704, 59024, 62188, 68138, 68851, 74732, 75514, 77872, 82739, 124376, 136276, 137702, 149464, 151028, 165478, 248752, 264299, 272552, 275404, 298928, 302056, 330956, 348697, 481957, 528598, 545104, 550808, 579173, 604112, 661912, 697394, 963914, 1057196, 1101616, 1158346, 1170467, 1323824, 1394788, 1927828, 2114392, 2316692, 2340934, 2440879, 2789576, 3855656, 4228784, 4633384, 4681868, 4881758, 5579152, 5927849, 7711312, 8193269, 9266768, 9363736, 9763516, 10809607, 11855698, 16386538, 18727472, 19527032, 21619214, 23711396, 32773076, 39054064, 41494943, 43238428, 47422792, 65546152, 75667249, 82989886, 86476856, 94845584, 131092304, 151334498, 165979772, 172953712, 183763319, 302668996, 331959544, 367526638, 605337992, 663919088, 735053276, 1210675984, 1286343233, 1470106552, 2572686466, 2940213104, 5145372932, 10290745864, 20581491728]

約数ペア:

[(1, 20581491728), (2, 10290745864), (4, 5145372932), (7, 2940213104), (8, 2572686466), (14, 1470106552), (16, 1286343233), (17, 1210675984), (28, 735053276), (31, 663919088), (34, 605337992), (56, 367526638), (62, 331959544), (68, 302668996), (112, 183763319), (119, 172953712), (124, 165979772), (136, 151334498), (157, 131092304), (217, 94845584), (238, 86476856), (248, 82989886), (272, 75667249), (314, 65546152), (434, 47422792), (476, 43238428), (496, 41494943), (527, 39054064), (628, 32773076), (868, 23711396), (952, 21619214), (1054, 19527032), (1099, 18727472), (1256, 16386538), (1736, 11855698), (1904, 10809607), (2108, 9763516), (2198, 9363736), (2221, 9266768), (2512, 8193269), (2669, 7711312), (3472, 5927849), (3689, 5579152), (4216, 4881758), (4396, 4681868), (4442, 4633384), (4867, 4228784), (5338, 3855656), (7378, 2789576), (8432, 2440879), (8792, 2340934), (8884, 2316692), (9734, 2114392), (10676, 1927828), (14756, 1394788), (15547, 1323824), (17584, 1170467), (17768, 1158346), (18683, 1101616), (19468, 1057196), (21352, 963914), (29512, 697394), (31094, 661912), (34069, 604112), (35536, 579173), (37366, 550808), (37757, 545104), (38936, 528598), (42704, 481957), (59024, 348697), (62188, 330956), (68138, 302056), (68851, 298928), (74732, 275404), (75514, 272552), (77872, 264299), (82739, 248752), (124376, 165478), (136276, 151028), (137702, 149464)]