2017492760

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1\times {\mathrm{509}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 4580452800

約数和(自身を除く): 2562960040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 503, 509, 788, 985, 1006, 1018, 1576, 1970, 2012, 2036, 2515, 2545, 3940, 4024, 4072, 5030, 5090, 7880, 10060, 10180, 20120, 20360, 99091, 100273, 198182, 200546, 256027, 396364, 401092, 495455, 501365, 512054, 792728, 802184, 990910, 1002730, 1024108, 1280135, 1981820, 2005460, 2048216, 2560270, 3963640, 4010920, 5120540, 10241080, 50437319, 100874638, 201749276, 252186595, 403498552, 504373190, 1008746380, 2017492760]

約数ペア:

[(1, 2017492760), (2, 1008746380), (4, 504373190), (5, 403498552), (8, 252186595), (10, 201749276), (20, 100874638), (40, 50437319), (197, 10241080), (394, 5120540), (503, 4010920), (509, 3963640), (788, 2560270), (985, 2048216), (1006, 2005460), (1018, 1981820), (1576, 1280135), (1970, 1024108), (2012, 1002730), (2036, 990910), (2515, 802184), (2545, 792728), (3940, 512054), (4024, 501365), (4072, 495455), (5030, 401092), (5090, 396364), (7880, 256027), (10060, 200546), (10180, 198182), (20120, 100273), (20360, 99091)]