20645248

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 46695600

約数和(自身を除く): 26050352

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 653, 832, 988, 1216, 1306, 1664, 1976, 2432, 2612, 3952, 5224, 7904, 8489, 10448, 12407, 15808, 16978, 20896, 24814, 31616, 33956, 41792, 49628, 67912, 83584, 99256, 135824, 161291, 198512, 271648, 322582, 397024, 543296, 645164, 794048, 1086592, 1290328, 1588096, 2580656, 5161312, 10322624, 20645248]

約数ペア:

[(1, 20645248), (2, 10322624), (4, 5161312), (8, 2580656), (13, 1588096), (16, 1290328), (19, 1086592), (26, 794048), (32, 645164), (38, 543296), (52, 397024), (64, 322582), (76, 271648), (104, 198512), (128, 161291), (152, 135824), (208, 99256), (247, 83584), (304, 67912), (416, 49628), (494, 41792), (608, 33956), (653, 31616), (832, 24814), (988, 20896), (1216, 16978), (1306, 15808), (1664, 12407), (1976, 10448), (2432, 8489), (2612, 7904), (3952, 5224)]