15771520

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1335

約数の個数: 64

約数和(自身を含む): 39718800

約数和(自身を除く): 23947280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1297, 1520, 2432, 2594, 3040, 5188, 6080, 6485, 10376, 12160, 12970, 20752, 24643, 25940, 41504, 49286, 51880, 83008, 98572, 103760, 123215, 166016, 197144, 207520, 246430, 394288, 415040, 492860, 788576, 830080, 985720, 1577152, 1971440, 3154304, 3942880, 7885760, 15771520]

約数ペア:

[(1, 15771520), (2, 7885760), (4, 3942880), (5, 3154304), (8, 1971440), (10, 1577152), (16, 985720), (19, 830080), (20, 788576), (32, 492860), (38, 415040), (40, 394288), (64, 246430), (76, 207520), (80, 197144), (95, 166016), (128, 123215), (152, 103760), (160, 98572), (190, 83008), (304, 51880), (320, 49286), (380, 41504), (608, 25940), (640, 24643), (760, 20752), (1216, 12970), (1297, 12160), (1520, 10376), (2432, 6485), (2594, 6080), (3040, 5188)]