205771520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8461}}^1$

素因数の和:8501

約数の個数: 72

約数和(自身を含む): 518889840

約数和(自身を除く): 313118320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 8461, 12160, 16922, 24320, 33844, 42305, 67688, 84610, 135376, 160759, 169220, 270752, 321518, 338440, 541504, 643036, 676880, 803795, 1083008, 1286072, 1353760, 1607590, 2166016, 2572144, 2707520, 3215180, 5144288, 5415040, 6430360, 10288576, 10830080, 12860720, 20577152, 25721440, 41154304, 51442880, 102885760, 205771520]

約数ペア:

[(1, 205771520), (2, 102885760), (4, 51442880), (5, 41154304), (8, 25721440), (10, 20577152), (16, 12860720), (19, 10830080), (20, 10288576), (32, 6430360), (38, 5415040), (40, 5144288), (64, 3215180), (76, 2707520), (80, 2572144), (95, 2166016), (128, 1607590), (152, 1353760), (160, 1286072), (190, 1083008), (256, 803795), (304, 676880), (320, 643036), (380, 541504), (608, 338440), (640, 321518), (760, 270752), (1216, 169220), (1280, 160759), (1520, 135376), (2432, 84610), (3040, 67688), (4864, 42305), (6080, 33844), (8461, 24320), (12160, 16922)]