20512690520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1093427}}^1$

素因数の和:1093512

約数の個数: 64

約数和(自身を含む): 53534234880

約数和(自身を除く): 33021544360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4690, 9380, 18760, 1093427, 2186854, 4373708, 5467135, 7653989, 8747416, 10934270, 15307978, 21868540, 30615956, 38269945, 43737080, 61231912, 73259609, 76539890, 146519218, 153079780, 293038436, 306159560, 366298045, 512817263, 586076872, 732596090, 1025634526, 1465192180, 2051269052, 2564086315, 2930384360, 4102538104, 5128172630, 10256345260, 20512690520]

約数ペア:

[(1, 20512690520), (2, 10256345260), (4, 5128172630), (5, 4102538104), (7, 2930384360), (8, 2564086315), (10, 2051269052), (14, 1465192180), (20, 1025634526), (28, 732596090), (35, 586076872), (40, 512817263), (56, 366298045), (67, 306159560), (70, 293038436), (134, 153079780), (140, 146519218), (268, 76539890), (280, 73259609), (335, 61231912), (469, 43737080), (536, 38269945), (670, 30615956), (938, 21868540), (1340, 15307978), (1876, 10934270), (2345, 8747416), (2680, 7653989), (3752, 5467135), (4690, 4373708), (9380, 2186854), (18760, 1093427)]