257805072

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:691

約数の個数: 240

約数和(自身を含む): 907531200

約数和(自身を除く): 649726128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 36, 38, 42, 48, 49, 54, 56, 57, 63, 72, 76, 84, 98, 108, 112, 114, 126, 133, 144, 147, 152, 168, 171, 189, 196, 216, 228, 252, 266, 294, 304, 336, 342, 378, 392, 399, 432, 441, 456, 504, 513, 532, 588, 641, 684, 756, 784, 798, 882, 912, 931, 1008, 1026, 1064, 1176, 1197, 1282, 1323, 1368, 1512, 1596, 1764, 1862, 1923, 2052, 2128, 2352, 2394, 2564, 2646, 2736, 2793, 3024, 3192, 3528, 3591, 3724, 3846, 4104, 4487, 4788, 5128, 5292, 5586, 5769, 6384, 7056, 7182, 7448, 7692, 8208, 8379, 8974, 9576, 10256, 10584, 11172, 11538, 12179, 13461, 14364, 14896, 15384, 16758, 17307, 17948, 19152, 21168, 22344, 23076, 24358, 25137, 26922, 28728, 30768, 31409, 33516, 34614, 35896, 36537, 40383, 44688, 46152, 48716, 50274, 53844, 57456, 62818, 67032, 69228, 71792, 73074, 80766, 85253, 92304, 94227, 97432, 100548, 107688, 109611, 121149, 125636, 134064, 138456, 146148, 161532, 170506, 188454, 194864, 201096, 215376, 219222, 242298, 251272, 255759, 276912, 282681, 292296, 323064, 328833, 341012, 376908, 402192, 438444, 484596, 502544, 511518, 565362, 584592, 596771, 646128, 657666, 682024, 753816, 767277, 848043, 876888, 969192, 1023036, 1130724, 1193542, 1315332, 1364048, 1507632, 1534554, 1696086, 1753776, 1790313, 1938384, 2046072, 2261448, 2301831, 2387084, 2630664, 3069108, 3392172, 3580626, 4092144, 4522896, 4603662, 4774168, 5261328, 5370939, 6138216, 6784344, 7161252, 9207324, 9548336, 10741878, 12276432, 13568688, 14322504, 16112817, 18414648, 21483756, 28645008, 32225634, 36829296, 42967512, 64451268, 85935024, 128902536, 257805072]

約数ペア:

[(1, 257805072), (2, 128902536), (3, 85935024), (4, 64451268), (6, 42967512), (7, 36829296), (8, 32225634), (9, 28645008), (12, 21483756), (14, 18414648), (16, 16112817), (18, 14322504), (19, 13568688), (21, 12276432), (24, 10741878), (27, 9548336), (28, 9207324), (36, 7161252), (38, 6784344), (42, 6138216), (48, 5370939), (49, 5261328), (54, 4774168), (56, 4603662), (57, 4522896), (63, 4092144), (72, 3580626), (76, 3392172), (84, 3069108), (98, 2630664), (108, 2387084), (112, 2301831), (114, 2261448), (126, 2046072), (133, 1938384), (144, 1790313), (147, 1753776), (152, 1696086), (168, 1534554), (171, 1507632), (189, 1364048), (196, 1315332), (216, 1193542), (228, 1130724), (252, 1023036), (266, 969192), (294, 876888), (304, 848043), (336, 767277), (342, 753816), (378, 682024), (392, 657666), (399, 646128), (432, 596771), (441, 584592), (456, 565362), (504, 511518), (513, 502544), (532, 484596), (588, 438444), (641, 402192), (684, 376908), (756, 341012), (784, 328833), (798, 323064), (882, 292296), (912, 282681), (931, 276912), (1008, 255759), (1026, 251272), (1064, 242298), (1176, 219222), (1197, 215376), (1282, 201096), (1323, 194864), (1368, 188454), (1512, 170506), (1596, 161532), (1764, 146148), (1862, 138456), (1923, 134064), (2052, 125636), (2128, 121149), (2352, 109611), (2394, 107688), (2564, 100548), (2646, 97432), (2736, 94227), (2793, 92304), (3024, 85253), (3192, 80766), (3528, 73074), (3591, 71792), (3724, 69228), (3846, 67032), (4104, 62818), (4487, 57456), (4788, 53844), (5128, 50274), (5292, 48716), (5586, 46152), (5769, 44688), (6384, 40383), (7056, 36537), (7182, 35896), (7448, 34614), (7692, 33516), (8208, 31409), (8379, 30768), (8974, 28728), (9576, 26922), (10256, 25137), (10584, 24358), (11172, 23076), (11538, 22344), (12179, 21168), (13461, 19152), (14364, 17948), (14896, 17307), (15384, 16758)]