640867584

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 288

約数和(自身を含む): 2090962944

約数和(自身を除く): 1450095360

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 56, 64, 69, 71, 73, 84, 92, 96, 112, 128, 138, 142, 146, 161, 168, 184, 192, 213, 219, 224, 256, 276, 284, 292, 322, 336, 368, 384, 426, 438, 448, 483, 497, 511, 552, 568, 584, 644, 672, 736, 768, 852, 876, 896, 966, 994, 1022, 1104, 1136, 1168, 1288, 1344, 1472, 1491, 1533, 1633, 1679, 1704, 1752, 1792, 1932, 1988, 2044, 2208, 2272, 2336, 2576, 2688, 2944, 2982, 3066, 3266, 3358, 3408, 3504, 3864, 3976, 4088, 4416, 4544, 4672, 4899, 5037, 5152, 5183, 5376, 5888, 5964, 6132, 6532, 6716, 6816, 7008, 7728, 7952, 8176, 8832, 9088, 9344, 9798, 10074, 10304, 10366, 11431, 11753, 11928, 12264, 13064, 13432, 13632, 14016, 15456, 15549, 15904, 16352, 17664, 18176, 18688, 19596, 20148, 20608, 20732, 22862, 23506, 23856, 24528, 26128, 26864, 27264, 28032, 30912, 31098, 31808, 32704, 34293, 35259, 36281, 39192, 40296, 41216, 41464, 45724, 47012, 47712, 49056, 52256, 53728, 54528, 56064, 61824, 62196, 63616, 65408, 68586, 70518, 72562, 78384, 80592, 82928, 91448, 94024, 95424, 98112, 104512, 107456, 108843, 119209, 123648, 124392, 127232, 130816, 137172, 141036, 145124, 156768, 161184, 165856, 182896, 188048, 190848, 196224, 209024, 214912, 217686, 238418, 248784, 274344, 282072, 290248, 313536, 322368, 331712, 357627, 365792, 376096, 381696, 392448, 418048, 429824, 435372, 476836, 497568, 548688, 564144, 580496, 627072, 644736, 663424, 715254, 731584, 752192, 834463, 870744, 953672, 995136, 1097376, 1128288, 1160992, 1254144, 1289472, 1326848, 1430508, 1463168, 1504384, 1668926, 1741488, 1907344, 1990272, 2194752, 2256576, 2321984, 2503389, 2861016, 2926336, 3008768, 3337852, 3482976, 3814688, 3980544, 4389504, 4513152, 4643968, 5006778, 5722032, 6675704, 6965952, 7629376, 8779008, 9026304, 9287936, 10013556, 11444064, 13351408, 13931904, 15258752, 20027112, 22888128, 26702816, 27863808, 30517504, 40054224, 45776256, 53405632, 80108448, 91552512, 106811264, 160216896, 213622528, 320433792, 640867584]

約数ペア:

[(1, 640867584), (2, 320433792), (3, 213622528), (4, 160216896), (6, 106811264), (7, 91552512), (8, 80108448), (12, 53405632), (14, 45776256), (16, 40054224), (21, 30517504), (23, 27863808), (24, 26702816), (28, 22888128), (32, 20027112), (42, 15258752), (46, 13931904), (48, 13351408), (56, 11444064), (64, 10013556), (69, 9287936), (71, 9026304), (73, 8779008), (84, 7629376), (92, 6965952), (96, 6675704), (112, 5722032), (128, 5006778), (138, 4643968), (142, 4513152), (146, 4389504), (161, 3980544), (168, 3814688), (184, 3482976), (192, 3337852), (213, 3008768), (219, 2926336), (224, 2861016), (256, 2503389), (276, 2321984), (284, 2256576), (292, 2194752), (322, 1990272), (336, 1907344), (368, 1741488), (384, 1668926), (426, 1504384), (438, 1463168), (448, 1430508), (483, 1326848), (497, 1289472), (511, 1254144), (552, 1160992), (568, 1128288), (584, 1097376), (644, 995136), (672, 953672), (736, 870744), (768, 834463), (852, 752192), (876, 731584), (896, 715254), (966, 663424), (994, 644736), (1022, 627072), (1104, 580496), (1136, 564144), (1168, 548688), (1288, 497568), (1344, 476836), (1472, 435372), (1491, 429824), (1533, 418048), (1633, 392448), (1679, 381696), (1704, 376096), (1752, 365792), (1792, 357627), (1932, 331712), (1988, 322368), (2044, 313536), (2208, 290248), (2272, 282072), (2336, 274344), (2576, 248784), (2688, 238418), (2944, 217686), (2982, 214912), (3066, 209024), (3266, 196224), (3358, 190848), (3408, 188048), (3504, 182896), (3864, 165856), (3976, 161184), (4088, 156768), (4416, 145124), (4544, 141036), (4672, 137172), (4899, 130816), (5037, 127232), (5152, 124392), (5183, 123648), (5376, 119209), (5888, 108843), (5964, 107456), (6132, 104512), (6532, 98112), (6716, 95424), (6816, 94024), (7008, 91448), (7728, 82928), (7952, 80592), (8176, 78384), (8832, 72562), (9088, 70518), (9344, 68586), (9798, 65408), (10074, 63616), (10304, 62196), (10366, 61824), (11431, 56064), (11753, 54528), (11928, 53728), (12264, 52256), (13064, 49056), (13432, 47712), (13632, 47012), (14016, 45724), (15456, 41464), (15549, 41216), (15904, 40296), (16352, 39192), (17664, 36281), (18176, 35259), (18688, 34293), (19596, 32704), (20148, 31808), (20608, 31098), (20732, 30912), (22862, 28032), (23506, 27264), (23856, 26864), (24528, 26128)]