18492099640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{66643}}^1$

素因数の和:67652

約数の個数: 64

約数和(自身を含む): 47599810560

約数和(自身を除く): 29107710920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 991, 1982, 3964, 4955, 6937, 7928, 9910, 13874, 19820, 27748, 34685, 39640, 55496, 66643, 69370, 133286, 138740, 266572, 277480, 333215, 466501, 533144, 666430, 933002, 1332860, 1866004, 2332505, 2665720, 3732008, 4665010, 9330020, 18660040, 66043213, 132086426, 264172852, 330216065, 462302491, 528345704, 660432130, 924604982, 1320864260, 1849209964, 2311512455, 2641728520, 3698419928, 4623024910, 9246049820, 18492099640]

約数ペア:

[(1, 18492099640), (2, 9246049820), (4, 4623024910), (5, 3698419928), (7, 2641728520), (8, 2311512455), (10, 1849209964), (14, 1320864260), (20, 924604982), (28, 660432130), (35, 528345704), (40, 462302491), (56, 330216065), (70, 264172852), (140, 132086426), (280, 66043213), (991, 18660040), (1982, 9330020), (3964, 4665010), (4955, 3732008), (6937, 2665720), (7928, 2332505), (9910, 1866004), (13874, 1332860), (19820, 933002), (27748, 666430), (34685, 533144), (39640, 466501), (55496, 333215), (66643, 277480), (69370, 266572), (133286, 138740)]