255991428

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:396

約数の個数: 240

約数和(自身を含む): 863858688

約数和(自身を除く): 607867260

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 31, 33, 36, 42, 44, 54, 62, 63, 66, 77, 81, 84, 93, 99, 108, 124, 126, 132, 154, 162, 186, 189, 198, 217, 231, 252, 279, 297, 308, 324, 331, 341, 372, 378, 396, 434, 462, 558, 567, 594, 651, 662, 682, 693, 756, 837, 868, 891, 924, 993, 1023, 1116, 1134, 1188, 1302, 1324, 1364, 1386, 1674, 1782, 1953, 1986, 2046, 2079, 2268, 2317, 2387, 2511, 2604, 2772, 2979, 3069, 3348, 3564, 3641, 3906, 3972, 4092, 4158, 4634, 4774, 5022, 5859, 5958, 6138, 6237, 6951, 7161, 7282, 7812, 8316, 8937, 9207, 9268, 9548, 10044, 10261, 10923, 11718, 11916, 12276, 12474, 13902, 14322, 14564, 17577, 17874, 18414, 20522, 20853, 21483, 21846, 23436, 24948, 25487, 26811, 27621, 27804, 28644, 30783, 32769, 35154, 35748, 36828, 41044, 41706, 42966, 43692, 50974, 53622, 55242, 61566, 62559, 64449, 65538, 70308, 71827, 76461, 83412, 85932, 92349, 98307, 101948, 107244, 110484, 112871, 123132, 125118, 128898, 131076, 143654, 152922, 184698, 187677, 193347, 196614, 215481, 225742, 229383, 250236, 257796, 277047, 287308, 294921, 305844, 338613, 369396, 375354, 386694, 393228, 430962, 451484, 458766, 554094, 589842, 646443, 677226, 688149, 750708, 773388, 790097, 831141, 861924, 917532, 1015839, 1108188, 1179684, 1292886, 1354452, 1376298, 1580194, 1662282, 1939329, 2031678, 2064447, 2370291, 2585772, 2752596, 3047517, 3160388, 3324564, 3878658, 4063356, 4128894, 4740582, 5817987, 6095034, 7110873, 7757316, 8257788, 9142551, 9481164, 11635974, 12190068, 14221746, 18285102, 21332619, 23271948, 28443492, 36570204, 42665238, 63997857, 85330476, 127995714, 255991428]

約数ペア:

[(1, 255991428), (2, 127995714), (3, 85330476), (4, 63997857), (6, 42665238), (7, 36570204), (9, 28443492), (11, 23271948), (12, 21332619), (14, 18285102), (18, 14221746), (21, 12190068), (22, 11635974), (27, 9481164), (28, 9142551), (31, 8257788), (33, 7757316), (36, 7110873), (42, 6095034), (44, 5817987), (54, 4740582), (62, 4128894), (63, 4063356), (66, 3878658), (77, 3324564), (81, 3160388), (84, 3047517), (93, 2752596), (99, 2585772), (108, 2370291), (124, 2064447), (126, 2031678), (132, 1939329), (154, 1662282), (162, 1580194), (186, 1376298), (189, 1354452), (198, 1292886), (217, 1179684), (231, 1108188), (252, 1015839), (279, 917532), (297, 861924), (308, 831141), (324, 790097), (331, 773388), (341, 750708), (372, 688149), (378, 677226), (396, 646443), (434, 589842), (462, 554094), (558, 458766), (567, 451484), (594, 430962), (651, 393228), (662, 386694), (682, 375354), (693, 369396), (756, 338613), (837, 305844), (868, 294921), (891, 287308), (924, 277047), (993, 257796), (1023, 250236), (1116, 229383), (1134, 225742), (1188, 215481), (1302, 196614), (1324, 193347), (1364, 187677), (1386, 184698), (1674, 152922), (1782, 143654), (1953, 131076), (1986, 128898), (2046, 125118), (2079, 123132), (2268, 112871), (2317, 110484), (2387, 107244), (2511, 101948), (2604, 98307), (2772, 92349), (2979, 85932), (3069, 83412), (3348, 76461), (3564, 71827), (3641, 70308), (3906, 65538), (3972, 64449), (4092, 62559), (4158, 61566), (4634, 55242), (4774, 53622), (5022, 50974), (5859, 43692), (5958, 42966), (6138, 41706), (6237, 41044), (6951, 36828), (7161, 35748), (7282, 35154), (7812, 32769), (8316, 30783), (8937, 28644), (9207, 27804), (9268, 27621), (9548, 26811), (10044, 25487), (10261, 24948), (10923, 23436), (11718, 21846), (11916, 21483), (12276, 20853), (12474, 20522), (13902, 18414), (14322, 17874), (14564, 17577)]