646449984

素因数分解:

$2^6\times 3^5\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:435

約数の個数: 168

約数和(自身を含む): 1940466528

約数和(自身を除く): 1294016544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 144, 162, 192, 197, 211, 216, 243, 288, 324, 394, 422, 432, 486, 576, 591, 633, 648, 788, 844, 864, 972, 1182, 1266, 1296, 1576, 1688, 1728, 1773, 1899, 1944, 2364, 2532, 2592, 3152, 3376, 3546, 3798, 3888, 4728, 5064, 5184, 5319, 5697, 6304, 6752, 7092, 7596, 7776, 9456, 10128, 10638, 11394, 12608, 13504, 14184, 15192, 15552, 15957, 17091, 18912, 20256, 21276, 22788, 28368, 30384, 31914, 34182, 37824, 40512, 41567, 42552, 45576, 47871, 51273, 56736, 60768, 63828, 68364, 83134, 85104, 91152, 95742, 102546, 113472, 121536, 124701, 127656, 136728, 166268, 170208, 182304, 191484, 205092, 249402, 255312, 273456, 332536, 340416, 364608, 374103, 382968, 410184, 498804, 510624, 546912, 665072, 748206, 765936, 820368, 997608, 1021248, 1093824, 1122309, 1330144, 1496412, 1531872, 1640736, 1995216, 2244618, 2660288, 2992824, 3063744, 3281472, 3366927, 3990432, 4489236, 5985648, 6733854, 7980864, 8978472, 10100781, 11971296, 13467708, 17956944, 20201562, 23942592, 26935416, 35913888, 40403124, 53870832, 71827776, 80806248, 107741664, 161612496, 215483328, 323224992, 646449984]

約数ペア:

[(1, 646449984), (2, 323224992), (3, 215483328), (4, 161612496), (6, 107741664), (8, 80806248), (9, 71827776), (12, 53870832), (16, 40403124), (18, 35913888), (24, 26935416), (27, 23942592), (32, 20201562), (36, 17956944), (48, 13467708), (54, 11971296), (64, 10100781), (72, 8978472), (81, 7980864), (96, 6733854), (108, 5985648), (144, 4489236), (162, 3990432), (192, 3366927), (197, 3281472), (211, 3063744), (216, 2992824), (243, 2660288), (288, 2244618), (324, 1995216), (394, 1640736), (422, 1531872), (432, 1496412), (486, 1330144), (576, 1122309), (591, 1093824), (633, 1021248), (648, 997608), (788, 820368), (844, 765936), (864, 748206), (972, 665072), (1182, 546912), (1266, 510624), (1296, 498804), (1576, 410184), (1688, 382968), (1728, 374103), (1773, 364608), (1899, 340416), (1944, 332536), (2364, 273456), (2532, 255312), (2592, 249402), (3152, 205092), (3376, 191484), (3546, 182304), (3798, 170208), (3888, 166268), (4728, 136728), (5064, 127656), (5184, 124701), (5319, 121536), (5697, 113472), (6304, 102546), (6752, 95742), (7092, 91152), (7596, 85104), (7776, 83134), (9456, 68364), (10128, 63828), (10638, 60768), (11394, 56736), (12608, 51273), (13504, 47871), (14184, 45576), (15192, 42552), (15552, 41567), (15957, 40512), (17091, 37824), (18912, 34182), (20256, 31914), (21276, 30384), (22788, 28368)]