663989248

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1673

約数の個数: 88

約数和(自身を含む): 1476460160

約数和(自身を除く): 812470912

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1024, 1609, 1612, 1664, 1984, 3218, 3224, 3328, 3968, 6436, 6448, 6656, 7936, 12872, 12896, 13312, 15872, 20917, 25744, 25792, 31744, 41834, 49879, 51488, 51584, 83668, 99758, 102976, 103168, 167336, 199516, 205952, 206336, 334672, 399032, 411904, 412672, 648427, 669344, 798064, 823808, 1296854, 1338688, 1596128, 1647616, 2593708, 2677376, 3192256, 5187416, 5354752, 6384512, 10374832, 10709504, 12769024, 20749664, 21419008, 25538048, 41499328, 51076096, 82998656, 165997312, 331994624, 663989248]

約数ペア:

[(1, 663989248), (2, 331994624), (4, 165997312), (8, 82998656), (13, 51076096), (16, 41499328), (26, 25538048), (31, 21419008), (32, 20749664), (52, 12769024), (62, 10709504), (64, 10374832), (104, 6384512), (124, 5354752), (128, 5187416), (208, 3192256), (248, 2677376), (256, 2593708), (403, 1647616), (416, 1596128), (496, 1338688), (512, 1296854), (806, 823808), (832, 798064), (992, 669344), (1024, 648427), (1609, 412672), (1612, 411904), (1664, 399032), (1984, 334672), (3218, 206336), (3224, 205952), (3328, 199516), (3968, 167336), (6436, 103168), (6448, 102976), (6656, 99758), (7936, 83668), (12872, 51584), (12896, 51488), (13312, 49879), (15872, 41834), (20917, 31744), (25744, 25792)]