646921728

素因数分解:

$2^9\times 3^4\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:870

約数の個数: 200

約数和(自身を含む): 2034992520

約数和(自身を除く): 1388070792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 81, 96, 108, 114, 128, 144, 152, 162, 171, 192, 216, 228, 256, 288, 304, 324, 342, 384, 432, 456, 512, 513, 576, 608, 648, 684, 768, 821, 864, 912, 1026, 1152, 1216, 1296, 1368, 1536, 1539, 1642, 1728, 1824, 2052, 2304, 2432, 2463, 2592, 2736, 3078, 3284, 3456, 3648, 4104, 4608, 4864, 4926, 5184, 5472, 6156, 6568, 6912, 7296, 7389, 8208, 9728, 9852, 10368, 10944, 12312, 13136, 13824, 14592, 14778, 15599, 16416, 19704, 20736, 21888, 22167, 24624, 26272, 29184, 29556, 31198, 32832, 39408, 41472, 43776, 44334, 46797, 49248, 52544, 59112, 62396, 65664, 66501, 78816, 87552, 88668, 93594, 98496, 105088, 118224, 124792, 131328, 133002, 140391, 157632, 177336, 187188, 196992, 210176, 236448, 249584, 262656, 266004, 280782, 315264, 354672, 374376, 393984, 420352, 421173, 472896, 499168, 532008, 561564, 630528, 709344, 748752, 787968, 842346, 945792, 998336, 1064016, 1123128, 1261056, 1263519, 1418688, 1497504, 1684692, 1891584, 1996672, 2128032, 2246256, 2527038, 2837376, 2995008, 3369384, 3783168, 3993344, 4256064, 4492512, 5054076, 5674752, 5990016, 6738768, 7986688, 8512128, 8985024, 10108152, 11349504, 11980032, 13477536, 17024256, 17970048, 20216304, 23960064, 26955072, 34048512, 35940096, 40432608, 53910144, 71880192, 80865216, 107820288, 161730432, 215640576, 323460864, 646921728]

約数ペア:

[(1, 646921728), (2, 323460864), (3, 215640576), (4, 161730432), (6, 107820288), (8, 80865216), (9, 71880192), (12, 53910144), (16, 40432608), (18, 35940096), (19, 34048512), (24, 26955072), (27, 23960064), (32, 20216304), (36, 17970048), (38, 17024256), (48, 13477536), (54, 11980032), (57, 11349504), (64, 10108152), (72, 8985024), (76, 8512128), (81, 7986688), (96, 6738768), (108, 5990016), (114, 5674752), (128, 5054076), (144, 4492512), (152, 4256064), (162, 3993344), (171, 3783168), (192, 3369384), (216, 2995008), (228, 2837376), (256, 2527038), (288, 2246256), (304, 2128032), (324, 1996672), (342, 1891584), (384, 1684692), (432, 1497504), (456, 1418688), (512, 1263519), (513, 1261056), (576, 1123128), (608, 1064016), (648, 998336), (684, 945792), (768, 842346), (821, 787968), (864, 748752), (912, 709344), (1026, 630528), (1152, 561564), (1216, 532008), (1296, 499168), (1368, 472896), (1536, 421173), (1539, 420352), (1642, 393984), (1728, 374376), (1824, 354672), (2052, 315264), (2304, 280782), (2432, 266004), (2463, 262656), (2592, 249584), (2736, 236448), (3078, 210176), (3284, 196992), (3456, 187188), (3648, 177336), (4104, 157632), (4608, 140391), (4864, 133002), (4926, 131328), (5184, 124792), (5472, 118224), (6156, 105088), (6568, 98496), (6912, 93594), (7296, 88668), (7389, 87552), (8208, 78816), (9728, 66501), (9852, 65664), (10368, 62396), (10944, 59112), (12312, 52544), (13136, 49248), (13824, 46797), (14592, 44334), (14778, 43776), (15599, 41472), (16416, 39408), (19704, 32832), (20736, 31198), (21888, 29556), (22167, 29184), (24624, 26272)]