2019957460

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{503}}^1\times {\mathrm{1009}}^1$

素因数の和:1720

約数の個数: 48

約数和(自身を含む): 4275936000

約数和(自身を除く): 2255978540

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 503, 796, 995, 1006, 1009, 1990, 2012, 2018, 2515, 3980, 4036, 5030, 5045, 10060, 10090, 20180, 100097, 200194, 200791, 400388, 401582, 500485, 507527, 803164, 1000970, 1003955, 1015054, 2001940, 2007910, 2030108, 2537635, 4015820, 5075270, 10150540, 100997873, 201995746, 403991492, 504989365, 1009978730, 2019957460]

約数ペア:

[(1, 2019957460), (2, 1009978730), (4, 504989365), (5, 403991492), (10, 201995746), (20, 100997873), (199, 10150540), (398, 5075270), (503, 4015820), (796, 2537635), (995, 2030108), (1006, 2007910), (1009, 2001940), (1990, 1015054), (2012, 1003955), (2018, 1000970), (2515, 803164), (3980, 507527), (4036, 500485), (5030, 401582), (5045, 400388), (10060, 200791), (10090, 200194), (20180, 100097)]