256460904

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 240

約数和(自身を含む): 860331780

約数和(自身を除く): 603870876

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 41, 42, 49, 54, 56, 63, 72, 81, 82, 84, 98, 108, 123, 126, 147, 162, 164, 168, 189, 196, 197, 216, 246, 252, 287, 294, 324, 328, 369, 378, 392, 394, 441, 492, 504, 567, 574, 588, 591, 648, 738, 756, 788, 861, 882, 984, 1107, 1134, 1148, 1176, 1182, 1323, 1379, 1476, 1512, 1576, 1722, 1764, 1773, 2009, 2214, 2268, 2296, 2364, 2583, 2646, 2758, 2952, 3321, 3444, 3528, 3546, 3969, 4018, 4137, 4428, 4536, 4728, 5166, 5292, 5319, 5516, 6027, 6642, 6888, 7092, 7749, 7938, 8036, 8077, 8274, 8856, 9653, 10332, 10584, 10638, 11032, 12054, 12411, 13284, 14184, 15498, 15876, 15957, 16072, 16154, 16548, 18081, 19306, 20664, 21276, 23247, 24108, 24231, 24822, 26568, 28959, 30996, 31752, 31914, 32308, 33096, 36162, 37233, 38612, 42552, 46494, 48216, 48462, 49644, 54243, 56539, 57918, 61992, 63828, 64616, 72324, 72693, 74466, 77224, 86877, 92988, 96924, 99288, 108486, 111699, 113078, 115836, 127656, 144648, 145386, 148932, 162729, 169617, 173754, 185976, 193848, 216972, 218079, 223398, 226156, 231672, 260631, 290772, 297864, 325458, 339234, 347508, 395773, 433944, 436158, 446796, 452312, 508851, 521262, 581544, 650916, 654237, 678468, 695016, 781893, 791546, 872316, 893592, 1017702, 1042524, 1187319, 1301832, 1308474, 1356936, 1526553, 1563786, 1583092, 1744632, 2035404, 2085048, 2374638, 2616948, 3053106, 3127572, 3166184, 3561957, 4070808, 4579659, 4749276, 5233896, 6106212, 6255144, 7123914, 9159318, 9498552, 10685871, 12212424, 14247828, 18318636, 21371742, 28495656, 32057613, 36637272, 42743484, 64115226, 85486968, 128230452, 256460904]

約数ペア:

[(1, 256460904), (2, 128230452), (3, 85486968), (4, 64115226), (6, 42743484), (7, 36637272), (8, 32057613), (9, 28495656), (12, 21371742), (14, 18318636), (18, 14247828), (21, 12212424), (24, 10685871), (27, 9498552), (28, 9159318), (36, 7123914), (41, 6255144), (42, 6106212), (49, 5233896), (54, 4749276), (56, 4579659), (63, 4070808), (72, 3561957), (81, 3166184), (82, 3127572), (84, 3053106), (98, 2616948), (108, 2374638), (123, 2085048), (126, 2035404), (147, 1744632), (162, 1583092), (164, 1563786), (168, 1526553), (189, 1356936), (196, 1308474), (197, 1301832), (216, 1187319), (246, 1042524), (252, 1017702), (287, 893592), (294, 872316), (324, 791546), (328, 781893), (369, 695016), (378, 678468), (392, 654237), (394, 650916), (441, 581544), (492, 521262), (504, 508851), (567, 452312), (574, 446796), (588, 436158), (591, 433944), (648, 395773), (738, 347508), (756, 339234), (788, 325458), (861, 297864), (882, 290772), (984, 260631), (1107, 231672), (1134, 226156), (1148, 223398), (1176, 218079), (1182, 216972), (1323, 193848), (1379, 185976), (1476, 173754), (1512, 169617), (1576, 162729), (1722, 148932), (1764, 145386), (1773, 144648), (2009, 127656), (2214, 115836), (2268, 113078), (2296, 111699), (2364, 108486), (2583, 99288), (2646, 96924), (2758, 92988), (2952, 86877), (3321, 77224), (3444, 74466), (3528, 72693), (3546, 72324), (3969, 64616), (4018, 63828), (4137, 61992), (4428, 57918), (4536, 56539), (4728, 54243), (5166, 49644), (5292, 48462), (5319, 48216), (5516, 46494), (6027, 42552), (6642, 38612), (6888, 37233), (7092, 36162), (7749, 33096), (7938, 32308), (8036, 31914), (8077, 31752), (8274, 30996), (8856, 28959), (9653, 26568), (10332, 24822), (10584, 24231), (10638, 24108), (11032, 23247), (12054, 21276), (12411, 20664), (13284, 19306), (14184, 18081), (15498, 16548), (15876, 16154), (15957, 16072)]