256978512

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 870480000

約数和(自身を除く): 613501488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 36, 42, 48, 56, 58, 59, 63, 72, 84, 87, 112, 116, 118, 126, 144, 149, 168, 174, 177, 203, 232, 236, 252, 261, 298, 336, 348, 354, 406, 413, 447, 464, 472, 504, 522, 531, 596, 609, 696, 708, 812, 826, 894, 944, 1008, 1043, 1044, 1062, 1192, 1218, 1239, 1341, 1392, 1416, 1624, 1652, 1711, 1788, 1827, 2086, 2088, 2124, 2384, 2436, 2478, 2682, 2832, 3129, 3248, 3304, 3422, 3576, 3654, 3717, 4172, 4176, 4248, 4321, 4872, 4956, 5133, 5364, 6258, 6608, 6844, 7152, 7308, 7434, 8344, 8496, 8642, 8791, 9387, 9744, 9912, 10266, 10728, 11977, 12516, 12963, 13688, 14616, 14868, 15399, 16688, 17284, 17582, 18774, 19824, 20532, 21456, 23954, 25032, 25926, 26373, 27376, 29232, 29736, 30247, 30798, 34568, 35164, 35931, 37548, 38889, 41064, 47908, 50064, 51852, 52746, 59472, 60494, 61537, 61596, 69136, 70328, 71862, 75096, 77778, 79119, 82128, 90741, 95816, 103704, 105492, 107793, 120988, 123074, 123192, 140656, 143724, 150192, 155556, 158238, 181482, 184611, 191632, 207408, 210984, 215586, 241976, 246148, 246384, 254939, 272223, 287448, 311112, 316476, 362964, 369222, 421968, 431172, 483952, 492296, 509878, 544446, 553833, 574896, 622224, 632952, 725928, 738444, 764817, 862344, 984592, 1019756, 1088892, 1107666, 1265904, 1451856, 1476888, 1529634, 1724688, 1784573, 2039512, 2177784, 2215332, 2294451, 2953776, 3059268, 3569146, 4079024, 4355568, 4430664, 4588902, 5353719, 6118536, 7138292, 8861328, 9177804, 10707438, 12237072, 14276584, 16061157, 18355608, 21414876, 28553168, 32122314, 36711216, 42829752, 64244628, 85659504, 128489256, 256978512]

約数ペア:

[(1, 256978512), (2, 128489256), (3, 85659504), (4, 64244628), (6, 42829752), (7, 36711216), (8, 32122314), (9, 28553168), (12, 21414876), (14, 18355608), (16, 16061157), (18, 14276584), (21, 12237072), (24, 10707438), (28, 9177804), (29, 8861328), (36, 7138292), (42, 6118536), (48, 5353719), (56, 4588902), (58, 4430664), (59, 4355568), (63, 4079024), (72, 3569146), (84, 3059268), (87, 2953776), (112, 2294451), (116, 2215332), (118, 2177784), (126, 2039512), (144, 1784573), (149, 1724688), (168, 1529634), (174, 1476888), (177, 1451856), (203, 1265904), (232, 1107666), (236, 1088892), (252, 1019756), (261, 984592), (298, 862344), (336, 764817), (348, 738444), (354, 725928), (406, 632952), (413, 622224), (447, 574896), (464, 553833), (472, 544446), (504, 509878), (522, 492296), (531, 483952), (596, 431172), (609, 421968), (696, 369222), (708, 362964), (812, 316476), (826, 311112), (894, 287448), (944, 272223), (1008, 254939), (1043, 246384), (1044, 246148), (1062, 241976), (1192, 215586), (1218, 210984), (1239, 207408), (1341, 191632), (1392, 184611), (1416, 181482), (1624, 158238), (1652, 155556), (1711, 150192), (1788, 143724), (1827, 140656), (2086, 123192), (2088, 123074), (2124, 120988), (2384, 107793), (2436, 105492), (2478, 103704), (2682, 95816), (2832, 90741), (3129, 82128), (3248, 79119), (3304, 77778), (3422, 75096), (3576, 71862), (3654, 70328), (3717, 69136), (4172, 61596), (4176, 61537), (4248, 60494), (4321, 59472), (4872, 52746), (4956, 51852), (5133, 50064), (5364, 47908), (6258, 41064), (6608, 38889), (6844, 37548), (7152, 35931), (7308, 35164), (7434, 34568), (8344, 30798), (8496, 30247), (8642, 29736), (8791, 29232), (9387, 27376), (9744, 26373), (9912, 25926), (10266, 25032), (10728, 23954), (11977, 21456), (12516, 20532), (12963, 19824), (13688, 18774), (14616, 17582), (14868, 17284), (15399, 16688)]