638891008

素因数分解:

$2^{10}\times 7^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 176

約数和(自身を含む): 1591747200

約数和(自身を除く): 952856192

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 107, 112, 119, 128, 136, 196, 214, 224, 238, 256, 272, 343, 392, 428, 448, 476, 512, 544, 686, 749, 784, 833, 856, 896, 952, 1024, 1088, 1372, 1498, 1568, 1666, 1712, 1792, 1819, 1904, 2176, 2744, 2996, 3136, 3332, 3424, 3584, 3638, 3808, 4352, 5243, 5488, 5831, 5992, 6272, 6664, 6848, 7168, 7276, 7616, 8704, 10486, 10976, 11662, 11984, 12544, 12733, 13328, 13696, 14552, 15232, 17408, 20972, 21952, 23324, 23968, 25088, 25466, 26656, 27392, 29104, 30464, 36701, 41944, 43904, 46648, 47936, 50176, 50932, 53312, 54784, 58208, 60928, 73402, 83888, 87808, 89131, 93296, 95872, 101864, 106624, 109568, 116416, 121856, 146804, 167776, 175616, 178262, 186592, 191744, 203728, 213248, 232832, 293608, 335552, 351232, 356524, 373184, 383488, 407456, 426496, 465664, 587216, 623917, 671104, 713048, 746368, 766976, 814912, 852992, 931328, 1174432, 1247834, 1342208, 1426096, 1492736, 1629824, 1862656, 2348864, 2495668, 2684416, 2852192, 2985472, 3259648, 4697728, 4991336, 5368832, 5704384, 5970944, 6519296, 9395456, 9982672, 11408768, 13038592, 18790912, 19965344, 22817536, 37581824, 39930688, 45635072, 79861376, 91270144, 159722752, 319445504, 638891008]

約数ペア:

[(1, 638891008), (2, 319445504), (4, 159722752), (7, 91270144), (8, 79861376), (14, 45635072), (16, 39930688), (17, 37581824), (28, 22817536), (32, 19965344), (34, 18790912), (49, 13038592), (56, 11408768), (64, 9982672), (68, 9395456), (98, 6519296), (107, 5970944), (112, 5704384), (119, 5368832), (128, 4991336), (136, 4697728), (196, 3259648), (214, 2985472), (224, 2852192), (238, 2684416), (256, 2495668), (272, 2348864), (343, 1862656), (392, 1629824), (428, 1492736), (448, 1426096), (476, 1342208), (512, 1247834), (544, 1174432), (686, 931328), (749, 852992), (784, 814912), (833, 766976), (856, 746368), (896, 713048), (952, 671104), (1024, 623917), (1088, 587216), (1372, 465664), (1498, 426496), (1568, 407456), (1666, 383488), (1712, 373184), (1792, 356524), (1819, 351232), (1904, 335552), (2176, 293608), (2744, 232832), (2996, 213248), (3136, 203728), (3332, 191744), (3424, 186592), (3584, 178262), (3638, 175616), (3808, 167776), (4352, 146804), (5243, 121856), (5488, 116416), (5831, 109568), (5992, 106624), (6272, 101864), (6664, 95872), (6848, 93296), (7168, 89131), (7276, 87808), (7616, 83888), (8704, 73402), (10486, 60928), (10976, 58208), (11662, 54784), (11984, 53312), (12544, 50932), (12733, 50176), (13328, 47936), (13696, 46648), (14552, 43904), (15232, 41944), (17408, 36701), (20972, 30464), (21952, 29104), (23324, 27392), (23968, 26656), (25088, 25466)]