256981248

素因数分解:

$2^8\times 3^{10}\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 198

約数和(自身を含む): 814694454

約数和(自身を除く): 557713206

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 64, 68, 72, 81, 96, 102, 108, 128, 136, 144, 153, 162, 192, 204, 216, 243, 256, 272, 288, 306, 324, 384, 408, 432, 459, 486, 544, 576, 612, 648, 729, 768, 816, 864, 918, 972, 1088, 1152, 1224, 1296, 1377, 1458, 1632, 1728, 1836, 1944, 2176, 2187, 2304, 2448, 2592, 2754, 2916, 3264, 3456, 3672, 3888, 4131, 4352, 4374, 4896, 5184, 5508, 5832, 6528, 6561, 6912, 7344, 7776, 8262, 8748, 9792, 10368, 11016, 11664, 12393, 13056, 13122, 14688, 15552, 16524, 17496, 19584, 19683, 20736, 22032, 23328, 24786, 26244, 29376, 31104, 33048, 34992, 37179, 39168, 39366, 44064, 46656, 49572, 52488, 58752, 59049, 62208, 66096, 69984, 74358, 78732, 88128, 93312, 99144, 104976, 111537, 117504, 118098, 132192, 139968, 148716, 157464, 176256, 186624, 198288, 209952, 223074, 236196, 264384, 279936, 297432, 314928, 334611, 352512, 396576, 419904, 446148, 472392, 528768, 559872, 594864, 629856, 669222, 793152, 839808, 892296, 944784, 1003833, 1057536, 1189728, 1259712, 1338444, 1586304, 1679616, 1784592, 1889568, 2007666, 2379456, 2519424, 2676888, 3172608, 3569184, 3779136, 4015332, 4758912, 5038848, 5353776, 7138368, 7558272, 8030664, 9517824, 10707552, 14276736, 15116544, 16061328, 21415104, 28553472, 32122656, 42830208, 64245312, 85660416, 128490624, 256981248]

約数ペア:

[(1, 256981248), (2, 128490624), (3, 85660416), (4, 64245312), (6, 42830208), (8, 32122656), (9, 28553472), (12, 21415104), (16, 16061328), (17, 15116544), (18, 14276736), (24, 10707552), (27, 9517824), (32, 8030664), (34, 7558272), (36, 7138368), (48, 5353776), (51, 5038848), (54, 4758912), (64, 4015332), (68, 3779136), (72, 3569184), (81, 3172608), (96, 2676888), (102, 2519424), (108, 2379456), (128, 2007666), (136, 1889568), (144, 1784592), (153, 1679616), (162, 1586304), (192, 1338444), (204, 1259712), (216, 1189728), (243, 1057536), (256, 1003833), (272, 944784), (288, 892296), (306, 839808), (324, 793152), (384, 669222), (408, 629856), (432, 594864), (459, 559872), (486, 528768), (544, 472392), (576, 446148), (612, 419904), (648, 396576), (729, 352512), (768, 334611), (816, 314928), (864, 297432), (918, 279936), (972, 264384), (1088, 236196), (1152, 223074), (1224, 209952), (1296, 198288), (1377, 186624), (1458, 176256), (1632, 157464), (1728, 148716), (1836, 139968), (1944, 132192), (2176, 118098), (2187, 117504), (2304, 111537), (2448, 104976), (2592, 99144), (2754, 93312), (2916, 88128), (3264, 78732), (3456, 74358), (3672, 69984), (3888, 66096), (4131, 62208), (4352, 59049), (4374, 58752), (4896, 52488), (5184, 49572), (5508, 46656), (5832, 44064), (6528, 39366), (6561, 39168), (6912, 37179), (7344, 34992), (7776, 33048), (8262, 31104), (8748, 29376), (9792, 26244), (10368, 24786), (11016, 23328), (11664, 22032), (12393, 20736), (13056, 19683), (13122, 19584), (14688, 17496), (15552, 16524)]