644614992

素因数分解:

$2^4\times 3^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 240

約数和(自身を含む): 2176844800

約数和(自身を除く): 1532229808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 49, 56, 62, 63, 72, 84, 93, 98, 112, 124, 126, 144, 147, 168, 186, 196, 217, 248, 252, 279, 294, 336, 343, 372, 392, 421, 434, 441, 496, 504, 558, 588, 651, 686, 744, 784, 842, 868, 882, 1008, 1029, 1116, 1176, 1263, 1302, 1372, 1488, 1519, 1684, 1736, 1764, 1953, 2058, 2232, 2352, 2526, 2604, 2744, 2947, 3038, 3087, 3368, 3472, 3528, 3789, 3906, 4116, 4464, 4557, 5052, 5208, 5488, 5894, 6076, 6174, 6736, 7056, 7578, 7812, 8232, 8841, 9114, 10104, 10416, 10633, 11788, 12152, 12348, 13051, 13671, 15156, 15624, 16464, 17682, 18228, 20208, 20629, 21266, 23576, 24304, 24696, 26102, 26523, 27342, 30312, 31248, 31899, 35364, 36456, 39153, 41258, 42532, 47152, 49392, 52204, 53046, 54684, 60624, 61887, 63798, 70728, 72912, 78306, 82516, 85064, 91357, 95697, 104408, 106092, 109368, 117459, 123774, 127596, 141456, 144403, 156612, 165032, 170128, 182714, 185661, 191394, 208816, 212184, 218736, 234918, 247548, 255192, 274071, 288806, 313224, 330064, 365428, 371322, 382788, 424368, 433209, 469836, 495096, 510384, 548142, 577612, 626448, 639499, 730856, 742644, 765576, 822213, 866418, 939672, 990192, 1096284, 1155224, 1278998, 1299627, 1461712, 1485288, 1531152, 1644426, 1732836, 1879344, 1918497, 2192568, 2310448, 2557996, 2599254, 2970576, 3288852, 3465672, 3836994, 4385136, 4476493, 5115992, 5198508, 5755491, 6577704, 6931344, 7673988, 8952986, 10231984, 10397016, 11510982, 13155408, 13429479, 15347976, 17905972, 20794032, 23021964, 26858958, 30695952, 35811944, 40288437, 46043928, 53717916, 71623888, 80576874, 92087856, 107435832, 161153748, 214871664, 322307496, 644614992]

約数ペア:

[(1, 644614992), (2, 322307496), (3, 214871664), (4, 161153748), (6, 107435832), (7, 92087856), (8, 80576874), (9, 71623888), (12, 53717916), (14, 46043928), (16, 40288437), (18, 35811944), (21, 30695952), (24, 26858958), (28, 23021964), (31, 20794032), (36, 17905972), (42, 15347976), (48, 13429479), (49, 13155408), (56, 11510982), (62, 10397016), (63, 10231984), (72, 8952986), (84, 7673988), (93, 6931344), (98, 6577704), (112, 5755491), (124, 5198508), (126, 5115992), (144, 4476493), (147, 4385136), (168, 3836994), (186, 3465672), (196, 3288852), (217, 2970576), (248, 2599254), (252, 2557996), (279, 2310448), (294, 2192568), (336, 1918497), (343, 1879344), (372, 1732836), (392, 1644426), (421, 1531152), (434, 1485288), (441, 1461712), (496, 1299627), (504, 1278998), (558, 1155224), (588, 1096284), (651, 990192), (686, 939672), (744, 866418), (784, 822213), (842, 765576), (868, 742644), (882, 730856), (1008, 639499), (1029, 626448), (1116, 577612), (1176, 548142), (1263, 510384), (1302, 495096), (1372, 469836), (1488, 433209), (1519, 424368), (1684, 382788), (1736, 371322), (1764, 365428), (1953, 330064), (2058, 313224), (2232, 288806), (2352, 274071), (2526, 255192), (2604, 247548), (2744, 234918), (2947, 218736), (3038, 212184), (3087, 208816), (3368, 191394), (3472, 185661), (3528, 182714), (3789, 170128), (3906, 165032), (4116, 156612), (4464, 144403), (4557, 141456), (5052, 127596), (5208, 123774), (5488, 117459), (5894, 109368), (6076, 106092), (6174, 104408), (6736, 95697), (7056, 91357), (7578, 85064), (7812, 82516), (8232, 78306), (8841, 72912), (9114, 70728), (10104, 63798), (10416, 61887), (10633, 60624), (11788, 54684), (12152, 53046), (12348, 52204), (13051, 49392), (13671, 47152), (15156, 42532), (15624, 41258), (16464, 39153), (17682, 36456), (18228, 35364), (20208, 31899), (20629, 31248), (21266, 30312), (23576, 27342), (24304, 26523), (24696, 26102)]